Saturday 29 July 2017

Monogram Cassiopeia, Milky Ways Youngest Supernova Postage

Monogram Cassiopeia, Milky Ways Youngest Supernova Postage
Galaxies, Stars and Nebulae series: This extraordinarily deep Chandra image shows Cassiopeia A (Cas A, for short), the youngest supernova remnant in the Milky Way. New analysis…


Robust catalyst to split water into hydrogen, oxygen produced

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A single, robust catalyst that splits water into hydrogen and oxygen has been developed with Earth-abundant materials that approach the efficiency of more expensive platinum, according to scientists.
via Science Daily

Chasing the Total Solar Eclipse from NASA's WB-57F jets

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A team of scientists will take to the skies during the Aug. 21 eclipse, using two of NASA's WB-57 jet planes to chase the shadow of the moon for unparalleled observations of the sun and Mercury.
via Science Daily
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Aurora Slathers up the Sky

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Like salsa verde on your favorite burrito, a green aurora slathers up the sky in this June 25 snapshot from the International Space Station. About 400 kilometers (250 miles) above Earth, the orbiting station is itself within the upper realm of the auroral displays. Aurorae have the signature colors of excited molecules and atoms at the low densities found at extreme altitudes. Emission from atomic oxygen dominates this view. The tantalizing glow is green at lower altitudes, but rarer reddish bands extend above the space station's horizon. The orbital scene was captured while passing over a point south and east of Australia, with stars above the horizon at the right belonging to the constellation Canis Major, Orion's big dog. Sirius, alpha star of Canis Major, is the brightest star near the Earth's limb.

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