Thursday 1 December 2016

Star of Bethlehem may not be a star after all

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Studying historical, astronomical and biblical records, Grant Mathews, University of Notre Dame professor, believes the event that led the Magi was an extremely rare planetary alignment occurring in 6 B.C., and the likes of which may never be seen again.
via Science Daily
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Making graphene using laser-induced phase separation

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All our smart phones have shiny flat AMOLED displays. Behind each single pixel of these displays hide at least two silicon transistors which were mass-manufactured using laser annealing technologies. While the traditional methods to make them uses temperatures above 1,000°C, the laser technique reaches the same results at low temperatures even on plastic substrates (melting temperature below 300°C). Interestingly, a similar procedure can be used to generate crystals of graphene.
via Science Daily

Tangled threads weave through cosmic oddity

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New observations from the NASA/ESA Hubble Space Telescope have revealed the intricate structure of the galaxy NGC 4696 in greater detail than ever before. The elliptical galaxy is a beautiful cosmic oddity with a bright core wrapped in system of dark, swirling, thread-like filaments.
via Science Daily
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Buzz Aldrin Is Evacuated From the South Pole After Falling Ill

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The former astronaut and second man to walk on the moon was flown to New Zealand after he arrived for a private tour.
via New York Times

Astronomers watch star clusters spewing out dust

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Galaxies are often thought of as sparkling with stars, but they also contain gas and dust. Now, a team of astronomers has used new data to show that stars are responsible for producing dust on galactic scales, a finding consistent with long-standing theory. Dust is important because it is a key component of rocky planets such as Earth.
via Science Daily
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Black phosphorus doesn't mind water (if it is de-aerated)

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Researchers have disproved the idea that water degrades black phosphorus and find the material is actually hydrophobic, outlines a new report.
via Science Daily

Flaming Star Nebula

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A runaway star lights the Flaming Star Nebula in this cosmic scene. Otherwise known as IC 405, the Flaming Star Nebula's billowing interstellar clouds of gas and dust lie about 1,500 light-years away toward the constellation of Auriga. AE Aurigae, the bright star at upper left in the frame, is a massive and intensely hot O-type star moving rapidly through space, likely ejected from a collision of multiple star-systems in the vicinity of the Orion Nebula millions of years ago. Now close to IC 405, the high-speed star's ionizing ultraviolet radiation powers the visible reddish glow as the nebula's hydrogen atoms are stripped of their electrons and recombine. Its intense blue starlight is reflected by the nebula's dusty filaments. Like all massive stars AE Aurigae will be short-lived though, furiously burning through its supply of fuel for nuclear fusion and exploding as a supernova. The colorful telescopic snapshot spans about 5 light-years at the estimated distance of the Flaming Star Nebula.
Tomorrow's picture: a triple star is born
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It's a bird... It's a plane... It's the tiniest asteroid!

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A research team has characterized the smallest known asteroid using Earth-based telescopes: Asteroid 2015 TC25 measures just 6 feet across, they report.
via Science Daily
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