astronomy

NASA satellites catch a “growth spurt” from a newborn protostar

Blog, Slider / By / 1 April, 2015

Infrared images from instruments at Kitt Peak National Observatory (left) and NASA’s Spitzer Space Telescope document the outburst of HOPS 383, a young protostar in the Orion star-formation complex. Background: A wide view of the region taken from a Spitzer four-color infrared mosaic. E. Safron et al.; Background: NASA/JPL/T. Megeath (U-Toledo)   The observed outburst …

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Iron rain fell on early Earth, new Z machine data supports

Blog, Slider / By / 1 April, 2015

An artist’s concept shows a celestial body about the size of our moon slamming at great speed into a body the size of Mercury. NASA/JPL-Caltech Instead of core formation occurring by iron sinking down to the growing Earth’s core in large blobs, that iron was vaporized, spread out in a plume over the surface of …

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