News about black holes is usually accompanied by some fun
description of them eating stuff. But the supermassive behemoth at the
center of NGC 253 has become a little... sleepy.
The six astronauts and cosmonauts aboard the International Space Station are about to get some new orbital neighbors.
Mountains on Venus are capped with snow, just like on Earth.
Unlike Earth, Venusian snow is made up of heavy metal-containing
minerals.
If two astronomers predictions are right, Earth will plow
through a dusty trail of comet debris early Tuesday, setting off a
meteor shower that hasn’t been seen since 1930.
The plain-looking Saturn moon Dione may have once had a
geologically active subsurface ocean, new images from NASA's Cassini
spacecraft reveal.
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