Tuesday, 31 July 2018

Astronomers assemble 'light-fingerprints' to unveil mysteries of the cosmos

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Earthbound detectives rely on fingerprints to solve their cases; now astronomers can do the same, using 'light-fingerprints' instead of skin grooves to uncover the mysteries of exoplanets.
via Science Daily
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Next-generation photodetector camera to deploy during demo mission

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Testing tools and technologies for refueling and repairing satellites in orbit won't be the only demonstration taking place aboard the International Space Station during NASA's next Robotic Refueling Mission 3, or RRM3.
via Science Daily
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New electrocatalyst developed for ORR

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Scientists have fabricated a new type of VNQD-NG as nonprecious metal-based electrocatalyst for oxygen reduction reaction (ORR). This has significant practical and commercial applications.
via Science Daily

Worth the wait

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A taste of the transformative science that the James Webb Space Telescope will enable, from chasing down the Universe's first galaxies to characterising exoplanets in solar systems beyond our own
via ESA Space Science
http://www.esa.int/ESA_Multimedia/Videos/2018/07/JWST_a_beacon_for_science

Italy Dispatch: Ceramics Aren’t Enough. Bring on the Spaceships, Italian Town Says.

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Italy decided that the ceramics center of Grottaglie — with its long runway and uneventful weather — had the right stuff to be Virgin Galactic’s next launchpad.
via New York Times

Out There: Mars Is Frigid, Rusty and Haunted. We Can’t Stop Looking at It.

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An oasis in the sky inspires the imagination. A series of discoveries refreshes our yearning for the red planet.
via New York Times

A Large Body of Water on Mars Is Detected, Raising the Potential for Alien Life

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The discovery suggests that the liquid conditions beneath the icy southern polar cap may have provided one of the critical building blocks for life on the red planet.
via New York Times

Monday, 30 July 2018

Solar flares disrupted radio communications during September 2017 Atlantic hurricanes

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An unlucky coincidence of space and Earth weather in early September 2017 caused radio blackouts for hours during critical hurricane emergency response efforts, according to a new study. The new research, which details how the events on the Sun and Earth unfolded side-by-side, could aid in the development of space weather forecasting and response, according to the study's authors.
via Science Daily
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Trilobites: The Young Sun’s Outbursts Were Trapped in Blue Crystals From Outer Space

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Gases trapped inside a meteorite that fell to Earth offer the first physical clues of the “terrible twos” phase of our star early in the life of the solar system.
via New York Times

Parker Solar Probe and the birth of the solar wind

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This summer, humanity embarks on its first mission to touch the Sun: A spacecraft will be launched into the Sun's outer atmosphere. Facing several-million-degree Fahrenheit temperatures, NASA's Parker Solar Probe will directly sample solar particles and magnetic fields to resolve some of the most important questions in solar science.
via Science Daily
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Pair of colliding stars spill radioactive molecules into space

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Astronomers have made the first definitive detection of a radioactive molecule in interstellar space: a form, or isotopologue of aluminum monofluoride (26AlF). The new data -- made with ALMA and the NOEMA radio telescopes -- reveal that this radioactive isotopologue was ejected into space by the collision of two stars, a tremendously rare cosmic event that was witnessed on Earth as a 'new star,' or nova, in the year 1670.
via Science Daily
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Mars terraforming not possible using present-day technology

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Science fiction writers have long featured terraforming, the process of creating an Earth-like or habitable environment on another planet, in their stories. Scientists themselves have proposed terraforming to enable the long-term colonization of Mars. A solution common to both groups is to release carbon dioxide gas trapped in the Martian surface to thicken the atmosphere and act as a blanket to warm the planet.
via Science Daily
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The invisible structure providing Open Access in HEP

SCOAP³ partnership map (Image: CERN)

Only four years ago, most publications in High-Energy Physics (HEP) were behind paywalls, only accessible to a limited audience of academics. Today, nearly 90% of scientific articles in this field are available to everyone and authors from anywhere in the world can publish their articles without any financial barriers, all thanks to a collaboration hosted at CERN.

The Sponsoring Consortium for Open Access Publishing in Particle Physics (SCOAP³) is a global partnership involving 3000 libraries, national funding agencies and research institutions from 43 countries and three intergovernmental organisations. It functions on the basis of a ‘recirculation of funds’ business model, as a tripartite collaboration between libraries, national funding agencies and publishers of HEP journals. By centrally covering the costs involved in providing Open Access, SCOAP³ pays the publishers directly, thus removing subscription fees for individual journals and any expenses scientists might normally incur to publish their articles openly. This way, authors from anywhere in the world publish without any financial burden and retain the copyright of their work. Libraries pay their membership fees to the consortium, re-using funds previously spent on subscription fees for the journals which are now Open Access and member countries contribute according to their scientific output in the field.

Since its launch in 2014, SCOAP³ made more than 21 000 scientific articles published by authors from over 100 countries freely accessible to everyone. “What makes this collaboration work is the long tradition of sharing scientific knowledge amongst HEP researchers as well as CERN’s history of collaborating with other research labs. It is indeed in the Organization’s DNA to support the dissemination of the scientific information,” says Alexander Kohls, operations manager at SCOAP³. 

“With the recent addition of journals of the American Physical Society, SCOAP3 has reached an important and encouraging milestone in our attempt to foster access to scientific information, which is the basis of any scientific work. Open Access to publications is but one of several initiatives including access to open data to carry out verifiable research independently,” adds Eckhard Elsen, CERN’s Director for Research and Computing.

By making nearly all HEP articles Open Access, SCOAP³ has also significantly increased the visibility of particle physics research: a recent study shows that the number of article downloads has more than doubled since the articles became Open Access. This means millions of new readers for the scientific literature in the discipline, and most importantly, readers from countries where access to scientific information is often limited.

“Open Access reflects values and goals – such as the widest dissemination of scientific results – that have been enshrined in CERN’s Convention for more than sixty years. I am proud that CERN is committed to continue is strong support of this important Open Access initiative,” says CERN’s Director for International Relations, Charlotte Warakaulle.

SCOAP³’s infrastructure is provided by CERN and governed by its member countries who meet regularly in the SCOAP³ Governing Council. Earlier this year, delegates met to discuss the future of SCOAP³ and the strategy for the next five years. One of the priorities is to get more countries involved in the partnership and to offer more collaboration opportunities. The worldwide financial cooperation is what makes this initiative possible, creating a role model for Open Access. 


via CERN: Updates for the general public
https://home.cern/about/updates/2018/07/invisible-structure-providing-open-access-hep

Total eclipse

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Space Science Image of the Week: The Moon took on a red hue as Earth’s shadow fell across its surface during Friday’s total lunar eclipse
via ESA Space Science
http://www.esa.int/ESA_Multimedia/Images/2018/07/Lunar_eclipse_27_July_2018

Graphene bioelectronics

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Due to its unique structure and amazing physicochemical properties including high chemical inertness, large specific surface area, high electric conductivity, mechanical flexibility, and biocompatibility, graphene holds great potential for bioelectronic implants.

One of the prominent uses of graphene in bioelectronics is recording of electrical signals from body parts, such as the heart or brain. Last year’s edition of the largest medical trade fair in the world – MEDICA 2017, featured several exhibits using graphene in biomedicine. Among the exhibits were a brain activity detector for early warning of epileptic seizures, a retinal implant serving as optical prostheses for people who have lost their sight, a brain-computer interface containing graphene electrodes to measure brain activity, and a fully functional robotic hand controlled by a bracelet with graphene sensors.

Illustration: Graphene ocular implants. Source: Graphene transistors for bioelectronics (arXiv)

Preceding these successful demonstrations of technology were years of painstaking scientific research, that bit-by-bit explored the possibilities and advantages of using graphene for bioelectronics. Early work focused on quantifying the interaction of graphene with biological material, such as lipid membranes. It was evident that the addition of tiny amounts of biological material to the surface of graphene would change its properties, i.e. graphene would behave as a biosensor. The most common graphene device used in biosensing is the graphene field effect transistor – GFET. GFET array sensor platforms have also been used to identify malaria-infected red blood cells at the individual cell resolution. Subsequent work showed that one can grow live cells on graphene and monitor their chemical activity via accompanying electrical signals. Both intracellular and extracellular activity was detected, such as cellular excretion and cell membrane’s potential modulation.

Other than serving the important function of registering biological signals, graphene found surprising new applications such as in bone implants. Porous solids made of graphene oxide were found to possess similar mechanical properties and biocompatibility to titanium, a standard bone-replacement material. Using graphite molds, this new material can be shaped into custom complex shapes as desired. And although eyebrows were initially raised about the heat that emanates when power is provided to graphene implants, which could damage the host organism, researchers quickly found a solution to overheating – adding water between graphene and the biological material. A thin layer of water separating the graphene from tissue could save surrounding cells from being fried when an implant is operated.

Taking on the offensive, latest research shows that a layer of vertical graphene flakes on a surface kill harmful bacteria, potentially stopping infections during procedures such as implant surgery. While destroying bacteria, the sharp graphene flakes do not damage human cells because a bacterium is one micrometer in diameter while a human cell is 25 micrometers.

To conclude, graphene is an excellent material for bioelectronics, proven by countless research papers that affirm this application as well as some recent working graphene implant prototypes. Graphene bioelectronics are among the most promising applications of graphene field effect transistors (GFETs), which are driving the growth of the single-layer graphene market.
via Graphenea

Saturday, 28 July 2018

Technique to easily fabricate ceramic films used as OPV inter-layers developed

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Researchers developed a technique for coating Zinc related oxide (ZnOx, ZnOHx) simply by depositing the films in a solution process using the Metal Organic Decomposition method at ambient temperature and pressure without heating. They also demonstrated that their thin films produced by this technique were useful as buffer layers for OPV cells and that the films achieved a power conversion efficiency equivalent to that of ZnO thin films produced by conventional methods involving sintering.
via Science Daily

Theorists find mechanism behind nearly pure nanotubes from the unusual catalyst

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Scientists decode the unusual growth characteristic of carbon nanotubes that start out as one chirality but switch to another, resulting in nearly homogenous batches of single-walled nanotubes.
via Science Daily

X-ray technology reveals never-before-seen matter around black hole

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Scientists have clarified how gravity affects the shape of matter near the black hole in binary system Cygnus X-1. Their findings may help scientists further understand the physics of strong gravity and the evolution of black holes and galaxies.
via Science Daily
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What the ‘Blood Moon’ Lunar Eclipse Looked Like

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The entire moon was in shadow for 103 minutes, about 15 minutes longer than the average eclipse, and was visible from Europe, Africa, Asia, Australia and parts of South America.
via New York Times

Friday, 27 July 2018

LHC accelerates its first “atoms”

During a special one-day run, LHC operators injected lead "atoms" containing a single electron into the machine. (Image: Maximilien Brice, Julien Ordan/CERN)

Protons might be the Large Hadron Collider’s bread and butter, but that doesn’t mean it can’t crave more exotic tastes from time to time. On Wednesday 25 July, for the very first time, operators injected not just atomic nuclei but lead atoms containing a single electron into the LHC. This was one of the first proof-of-principle tests for a new idea called the Gamma Factory, part of CERN’s Physics Beyond Colliders project.

 

“We’re investigating new ideas of how we could broaden the present CERN research programme and infrastructure,” says Michaela Schaumann, an LHC Engineer in Charge. “Finding out what’s possible is the first step.”

 

During normal operation, the LHC produces a steady stream of proton–proton collisions, then smashes together atomic nuclei for about four weeks just before the annual winter shutdown. But for a handful of days a year, accelerator physicists get to try something completely new during periods of machine development. Previously, they accelerated xenon nuclei in the LHC and tested other kinds of partially stripped lead ions in the SPS accelerator.

 

“This special LHC run was really the last step in a series of tests,” said physicist Witold Krasny, who is coordinating a study group of about 50 scientists to develop new ways to produce high-energy gamma rays.

 

Accelerating lead nuclei with a remaining electron can be challenging because of how delicate these atoms are. “It’s really easy to accidentally strip off the electron,” explains Schaumann. “When that happens, the nucleus crashes into the wall of the beam pipe because its charge is no longer synchronized with the LHC’s magnetic field.”

 

During the first run, operators injected 24 bunches of atoms and achieved a low-energy stable beam inside the LHC for about an hour. They then ramped the LHC up to it’s full power and maintained the beam for about two minutes before it was ejected into the beam dump. “If too many particles go off course, the LHC automatically dumps the beam,” states Schaumann. “Our main priority is to protect the LHC and its magnets.”

 

After running the magnets through the restart cycle, Schaumann and her colleagues tried again, this time with only 6 bunches. They kept the beam circulating for two hours before intentionally dumping it.

 

“We predicted that the lifetime of this special kind of beam inside the LHC would be at least 15 hours,” said Krasny. “We were surprised to learn the lifetime could be as much as about 40 hours. Now the question is if we can preserve the same beam lifetime at a higher intensity by optimising the collimator settings, which were still set-up for protons during this special run.”

 

Physicists are doing these tests to see if the LHC could one day operate as a gamma-ray factory. In this scenario, scientists would shoot the circulating atoms with a laser, causing the electron to jump into a higher energy level. As the electron falls back down, it spits out a particle of light. In normal circumstances, this particle of light would not be very energetic, but because the atom is already moving at close to the speed of light, the energy of the emitted photon is boosted and it’s wavelength is squeezed (due to the Doppler effect).

 

These gamma rays would have sufficient energy to produce normal “matter” particles, such as quarks, electrons and even muons. Because matter and energy are two sides of the same coin, these high-energy gamma rays would transform into massive particles and could even morph into new kinds of matter, such as dark matter. They could also be the source for new types of particle beams, such as a muon beam.

 

Even though this is still a long way off, the tests this week were an important first step in seeing what is possible.


via CERN: Updates for the general public
https://home.cern/about/updates/2018/07/lhc-accelerates-its-first-atoms

What is an eclipse?

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Get ready for tonight's lunar eclipse and find out why the Moon will take on a reddish colour
via ESA Space Science
http://www.esa.int/ESA_Multimedia/Videos/2018/07/What_is_an_eclipse

New two-dimensional material could revolutionize solar fuel generation

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Scientists have obtained from hematite a new material with application as a photocatalyst, christened 'hematene.' The three-atom thick hematene is a ferromagnetic material, as opposed to the iron ore from which it was created.
via Science Daily

Thursday, 26 July 2018

Enduring 'radio rebound' powered by jets from gamma-ray burst

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Astronomers using ALMA studied a cataclysmic stellar explosion known as a gamma-ray burst, or GRB, and found its enduring 'afterglow.' The rebound, or reverse shock, triggered by the GRB's powerful jets slamming into surrounding debris, lasted thousands of times longer than expected. These observations provide fresh insights into the physics of GRBs, one of the universe's most energetic explosions.
via Science Daily
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Black holes really just ever-growing balls of string

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Black holes aren't surrounded by a burning ring of fire after all, suggests new research.
via Science Daily
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Thin gap on stellar family portrait

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A thin gap has been discovered on the Hertzsprung-Russell Diagram (HRD), the most fundamental of all maps in stellar astronomy, a finding that provides new information about the interior structures of low mass stars in the Milky Way Galaxy, according to a new study.
via Science Daily
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New family photos of Mars and Saturn from Hubble

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In summer 2018 the planets Mars and Saturn are, one after the other, in opposition to Earth. During this event the planets are relatively close to Earth, allowing astronomers to observe them in greater detail. Hubble took advantage of this preferred configuration and imaged both planets to continue its long-standing observation of the outer planets in the solar system.
via Science Daily
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Saturn and Mars Team Up to Make Their Closest Approaches to Earth in 2018


As Saturn and Mars ventured close to Earth, Hubble captured their portraits in June and July 2018, respectively. The telescope photographed the planets near opposition, when the Sun, Earth and an outer planet are lined up, with Earth sitting in between the Sun and the outer planet. Around the time of opposition, a planet is at its closest distance to Earth in its orbit. Hubble viewed Saturn on June 6, when the ringed world was approximately 1.36 billion miles from Earth, as it approached a June 27 opposition. Mars was captured on July 18, at just 36.9 million miles from Earth, near its July 27 opposition. Hubble saw the planets during summertime in Saturn’s northern hemisphere and springtime in Mars’ southern hemisphere. The increase in sunlight in Saturn’s northern hemisphere heated the atmosphere and triggered a large storm that is now disintegrating in Saturn’s northern polar region. On Mars, a spring dust storm erupted in the southern hemisphere and ballooned into a global event enshrouding the entire planet.


via Hubble - News feed
http://hubblesite.org/news_release/news/2018-29

Mars Express detects liquid water hidden under planet’s south pole

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Radar data collected by ESA's Mars Express point to a pond of liquid water buried under layers of ice and dust in the south polar region of Mars.
via Science Daily
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How to See Mars Opposition and Closest Approach to Earth

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For the past few weeks, the red planet has been growing brighter in the night sky, and everyone in the world can enjoy it at its closest approach.
via New York Times

BepiColombo to target mid-October launch

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Europe’s first mission to Mercury will target the early morning of 19 October for launch, Arianespace and ESA announced today.


via ESA Space Science
http://www.esa.int/Our_Activities/Space_Science/BepiColombo/BepiColombo_to_target_mid-October_launch

Wednesday, 25 July 2018

Tuesday, 24 July 2018

Where Martian dust comes from

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The dust that coats much of the surface of Mars originates largely from a single thousand-kilometer-long geological formation near the Red Planet's equator.
via Science Daily
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More mysteries of metallic hydrogen

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Liquid metallic hydrogen is not present naturally on Earth and has only been created in a handful of places. Now scientists are researching the properties of liquid metallic hydrogen to understand how planets both inside and outside our solar system form magnetic shields.
via Science Daily
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CERN’s International High-School Teacher Programme turns 20

46 enthused teachers from 33 different countries took part in the International High-School Teacher Programme 2018 (Image: Anthony Valsamis /CERN)

On Sunday, 1 July 2018, CERN welcomed 46 teachers from 33 different countries (and all continents) to start the International High-School Teacher (HST) Programme 2018. This three-week residential programme, which has taken place at CERN every July since 1998, is designed for science teachers from all around the world to discover the fascinating world of particle physics. The programme includes lectures, on-site visits, hands-on workshops, discussions and Q&A sessions. Moreover, during the three weeks, all teachers collaborate in several working groups on various topics related to particle physics and its integration into the classroom. For example, teachers build particle traps in S’Cool LAB, develop and evaluate new tools for the CERN Open Data portal, run a medical applications hackathon at IdeaSquare, or update educational resources for the IPPOG database.

Since its formal implementation over 20 years ago, CERN’s HST programme has come a long way. While the first year saw the nine participating teachers attend summer-student lectures as well as a series of special lectures and visits prepared for them, the HST programme today brings together up to 48 participants from around the world, who follow a professional-development programme carefully designed for them.

What started once as a single programme for a small group of teachers has grown into one of CERN’s many success stories. The teacher programmes are an acknowledgement of the importance of teachers and the critical role they play in preparing the future of humanity. It has inspired and empowered teachers and, through them, their pupils. Over the past 20 years, HST participants from different parts of the world became firm friends and many more remain in touch with each other to this day. Indeed, a crucial part of the programme is the free evenings and carefully selected social events, which enable the participants to share ideas and learn from each other’s experiences.

In 2017, prompted by the ever-increasing number of applications, a second international teacher programme - the International Teacher Weeks programme - was set up to double CERN’s offer for teachers from around the world. CERN now offers teacher programmes almost year-round. So far, about 12000 teachers have participated in CERN’s national and international teacher programmes, and every year another 1000 teachers travel to Geneva to do so.

Teachers have always been key players in CERN’s mission to train the scientists of tomorrow and CERN’s teacher programmes will continue to inspire and enthuse teachers from around the world on a weekly basis. Twenty years on, the HST programme continues to bring together teachers from all around the world, who return to their classrooms as motivated ambassadors for science and engineering.

Find out more about CERN’s teacher programmes: cern.ch/teachers


via CERN: Updates for the general public
https://home.cern/about/updates/2018/07/cerns-international-high-school-teacher-programme-turns-20

Monday, 23 July 2018

'Ribbon' wraps up mystery of Jupiter's magnetic equator

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The discovery of a dark ribbon of weak hydrogen ion emissions that encircles Jupiter has overturned previous thinking about the giant planet's magnetic equator.
via Science Daily
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Spotlight on BepiColombo

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Final inspections for the Mercury Transfer Module’s solar arrays before being stowed for launch
via ESA Space Science
http://www.esa.int/ESA_Multimedia/Images/2018/07/Mercury_Transfer_Module_solar_wing_inspection

Saturday, 21 July 2018

How to weigh stars with gravitational lensing

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Astronomers have published the predictions of the passages of foreground stars in front of background stars. A team of astronomers, using ultra-precise measurements from the Gaia satellite, have accurately forecast two passages in the next months. Each event will produce shifts in the background star's position due to the deflection of light by gravity, and will allow the measurement of the mass of the foreground star, which is extremely difficult to determine by other means.
via Science Daily
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Suspicious Minds

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Mingling with wariness and wonder at a conference devoted to “Ancient Aliens.”
via New York Times

Friday, 20 July 2018

New solar sailing technology for NASA

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Researchers is taking solar sailing to the next level with advanced photonic materials. This new class of materials could be used to steer reflected or transmitted photons and enable near-Earth, interplanetary and interstellar space travel.
via Science Daily
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Physics treasure hidden in a wallpaper pattern

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An international team of scientists has discovered a new, exotic form of insulating material with a metallic surface that could enable more efficient electronics or even quantum computing. The researchers developed a new method for analyzing existing chemical compounds that relies on the mathematical properties like symmetry that govern the repeating patterns seen in everyday wallpaper.
via Science Daily

Name Europe’s robot to roam and search for life on Mars

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The UK Space Agency has launched a competition to name a rover that is going to Mars to search for signs of life.


via ESA Space Science
http://www.esa.int/Our_Activities/Human_Spaceflight/Name_Europe_s_robot_to_roam_and_search_for_life_on_Mars

Thursday, 19 July 2018

Traveling to the sun: Why won't Parker Solar Probe melt?

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This summer, NASA's Parker Solar Probe will launch to travel closer to the Sun, deeper into the solar atmosphere, than any mission before it. Cutting-edge technology and engineering will help it beat the heat.
via Science Daily
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CALET succeeds in direct measurements of cosmic-ray electron spectrum up to 4.8 TeV

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Researchers have succeeded in the direct, high-precision measurements of cosmic-ray electron spectrum up to 4.8 TeV, based on observations with the Calorimetric Electron Telescope (CALET). Observations by CALET are expected to reveal the mysteries of cosmic-rays and nature of dark matter in the future.
via Science Daily
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Puzzling results explained: A multiband approach to Coulomb drag and indirect excitons

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A new theoretical study explains previous mystifying experimental results, in which coupled charged particles moved in exactly the opposite direction to that predicted. This apparently contradictory phenomenon is associated with the bandgap in dual-layer graphene structures, a bandgap which is very much smaller than in conventional semiconductors.
via Science Daily

LHC experiments present latest results at ICHEP

Traditional Korean music and dancing marked the start of the International Conference on High Energy Physics (ICHEP) in Seoul, South Korea. (Image: Marcos Dracos)

This year’s International Conference on High Energy Physics (ICHEP) — the “biggie” of conferences in high-energy physics — took place in Seoul, South Korea, on 4–11 July.

For a taste of the important scientific findings presented at the conference by the collaborations behind the main experiments at the Large Hadron Collider (LHC), read this related update for scientists.


via CERN: Updates for the general public
https://home.cern/about/updates/2018/07/lhc-experiments-present-latest-results-ichep

A storm rolls in

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Mars Express imaged a local dust storm in April, a precursor to the dramatic planet-circling event that followed
via ESA Space Science
http://www.esa.int/Our_Activities/Space_Science/Highlights/A_storm_rolls_in

NASA's new mini satellite will study Milky Way's halo

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A new mission called HaloSat will help scientists search for the universe's missing matter by studying X-rays from hot gas surrounding the Milky Way galaxy.
via Science Daily
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X-ray data may be first evidence of a star devouring a planet

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An analysis of X-ray data suggests the first observations of a star swallowing a planet, and may also explain the star's mysterious dimming.
via Science Daily
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Wednesday, 18 July 2018

Overlooked No More: Beatrice Tinsley, Astronomer Who Saw the Course of the Universe

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An insurgent who challenged the academic establishment and became a foremost expert on the aging of galaxies, she was eventually forced to choose between family and career.
via New York Times

Solar corona is more structured, dynamic than previously thought

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Scientists have discovered never-before-detected, fine-grained structures in the Sun's outer atmosphere, or corona. The team imaged this critical region in detail using sophisticated software techniques and longer exposures from the COR-2 camera on board NASA's Solar and Terrestrial Relations Observatory-A (STEREO-A).
via Science Daily
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Scientists recover possible fragments of meteorite that landed in marine sanctuary

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The largest recorded meteorite to strike the United States in 21 years fell into NOAA's Olympic Coast National Marine Sanctuary, and researchers have recovered what are believed to be pieces of the dense, interstellar rock after conducting the first intentional hunt for a meteorite at sea.
via Science Daily
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Planck: Final data from the mission lends support to the standard cosmological model

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With its increased reliability and its data on the polarization of relic radiation, the Planck mission corroborates the standard cosmological model with unrivaled precision for these parameters, even if some anomalies still remain.
via Science Daily
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Finding a planet with a 10 year orbit in just a few months

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To discover the presence of a planet around stars, astronomers wait until it has completed three orbits. However, this effective technique has its drawbacks since it cannot confirm the presence of planets at relatively long periods. To overcome this obstacle, astronomers have developed a method that makes it possible to ensure the presence of a planet in a few months, even if it takes 10 years to circle its star.
via Science Daily
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Martian atmosphere behaves as one

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New research using a decade of data from ESA’s Mars Express has found clear signs of the complex martian atmosphere acting as a single, interconnected system, with processes occurring at low and mid levels significantly affecting those seen higher up.


via ESA Space Science
http://www.esa.int/Our_Activities/Space_Science/Mars_Express/Martian_atmosphere_behaves_as_one

Supersharp images from new VLT adaptive optics

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ESO's Very Large Telescope (VLT) has achieved first light with a new adaptive optics mode called laser tomography -- and has captured remarkably sharp test images of the planet Neptune and other objects. The MUSE instrument working with the GALACSI adaptive optics module, can now use this new technique to correct for turbulence at different altitudes in the atmosphere. It is now possible to capture images from the ground at visible wavelengths that are sharper than those from the NASA/ESA Hubble Space Telescope.
via Science Daily
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79 Moons of Jupiter and Counting

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The latest survey of the region around the gas giant turned up a dozen new moons, including an oddball that was going in the wrong direction.
via New York Times

Spinning-top asteroids, from Rosetta to Hayabusa2 – and maybe Hera

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As Japan’s Hayabusa2 drew closer to its target Ryugu asteroid, a strange new planetoid came into view – but one with a somewhat familiar shape. This distinct ‘spinning top’ asteroid class has been seen repeatedly in recent years, and might give a foretaste of things to come for ESA’s proposed Hera mission.


via ESA Space Science
http://www.esa.int/Our_Activities/Space_Engineering_Technology/Hera/Spinning-top_asteroids_from_Rosetta_to_Hayabusa2_and_maybe_Hera

Tuesday, 17 July 2018

Astronomers find a famous exoplanet's doppelganger

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A new planet has been imaged, and it appears nearly identical to one of the best studied gas-giant planets. But this doppelganger differs in one very important way: Its origin. One object has long been known: the 13-Jupiter-mass planet beta Pictoris b, one of the first planets discovered by direct imaging, back in 2009. The new object, dubbed 2MASS 0249 c, has the same mass, brightness, and spectrum as beta Pictoris b.
via Science Daily
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A dozen new moons of Jupiter discovered, including one 'oddball'

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Twelve new moons orbiting Jupiter have been found -- 11 'normal' outer moons, and one that they're calling an 'oddball.' Astronomers first spotted the moons in the spring of 2017 while they were looking for very distant solar system objects as part of the hunt for a possible massive planet far beyond Pluto.
via Science Daily
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