Reunion Island Eclipse

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The New Moon's dark shadow crossed planet Earth on September 1. In silhouette the Moon didn't quite cover the Sun though, creating an an annular solar eclipse. The shadow's narrow central path was about 100 kilometers wide at maximum eclipse. Beginning in the South Atlantic, it tracked toward the east across Africa, ending in the Indian Ocean. Waiting on the Indian Ocean's Reunion Island, eclipse watchers enjoyed a view just north of the eclipse centerline, the annular phase lasting a few minutes or less. Clouds threaten the nearly eclipsed Sun but create a dramatic sky in this partial phase snapshot from the northern side of the 50 kilometer wide island. Tomorrow's picture: moon over Jupiter

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The supernova that wasn't: A tale of three cosmic eruptions

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Long-term observations with the Hubble Space Telescope revealed that Eta Carinae, a very massive star system that has puzzled astronomers since it erupted in a supernova-like event in the mid 19th century, has a past that's much more violent than they thought. The findings help rewrite the story of how this iconic and mysterious star system came to be and present a critical piece of the puzzle of how very massive stars die.
via Science Daily
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NASA's SDO witnesses a double eclipse

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Early in the morning of Sept. 1, 2016, NASA's Solar Dynamics Observatory, or SDO, caught both Earth and the moon crossing in front of the sun. SDO keeps a constant eye on the sun, but during SDO's semiannual eclipse seasons, Earth briefly blocks SDO's line of sight each day -- a consequence of SDO's geosynchronous orbit.
via Science Daily
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First stars formed even later than previously thought

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ESA's Planck satellite has revealed that the first stars in the Universe started forming later than previous observations of the Cosmic Microwave Background indicated. This new analysis also shows that these stars were the only sources needed to account for reionising atoms in the cosmos, having completed half of this process when the Universe had reached an age of 700 million years.
via Science Daily
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Jupiter's north pole unlike anything encountered in solar system

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NASA's Juno spacecraft has sent back the first-ever images of Jupiter's north pole, taken during the spacecraft's first flyby of the planet with its instruments switched on. The images show storm systems and weather activity unlike anything previously seen on any of our solar system's gas-giant planets.
via Science Daily
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New light on the complex nature of 'hot Jupiter' atmospheres

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A team of international researchers used state-of-the-art modelling techniques to extensively study the atmosphere of a 'hot Jupiter' found 150 light-years from Earth. The scientists adapted the state-of-the art computer model used by the Met Office to study Earth's atmosphere to perform simulations of these exotic distant worlds that are the size of Jupiter, but orbiting more closely to their parent star than Mercury does to the Sun.
via Science Daily
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3-D graphene has promise for bio applications

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Graphene oxide flakes can be welded together into solid materials that may be suitable for bone implants, according to an international study.
via Science Daily

Low-cost and defect-free graphene

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Graphene is one of the most promising new materials. However, researchers across the globe are still looking for a way to produce defect-free graphene at low costs. Chemists have now succeeded in producing defect-free graphene directly from graphite for the first time.
via Science Daily

Printed graphene treated with lasers to enable 'paper electronics'

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Engineers have led development of a laser-treatment process that allows them to use printed graphene for electric circuits and electrodes -- even on paper and other fragile surfaces. The technology could lead to many real-world, low-cost applications for printed graphene electronics, including sensors, fuel cells and medical devices.
via Science Daily

Engineers use microwaves to produce high-quality graphene

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Engineers have found a simple method for producing high-quality graphene that can be used in next-generation electronic and energy devices: bake the compound in a microwave oven.
via Science Daily

Lowering the cost and environmental footprint of white LEDs

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Replacing traditional light bulbs with light-emitting diodes (LEDs) could take a significant bite out of global energy consumption. But making white LEDs isn't completely benign or budget friendly. To help reduce the environmental footprint and cost of these lights, researchers have developed the first white LED with a hybrid, metal-organic framework material.
via Science Daily