What glows green in space?

While a quest for green beer in space would be difficult, we're happy to report there are other ways you can celebrate Saint Patrick's Day while looking at the night sky. Just check out the nebulae and aurorae in these pictures!

Stars made from galactic recycling material

(PhysOrg.com) -- Ordinary galaxies such as our own Milky Way contain a plethora of gas and dust. Nevertheless, there is not nearly enough matter to explain how galaxies produce new stars at the observed rates for long. As ...

Interstellar crashes could throw out habitable planets

(PhysOrg.com) -- Our solar system, where planets have a range of sizes and move in near-circular paths, may be rather unusual, according to a German-British team led by Professor Pavel Kroupa of the University of Bonn. The ...

Measuring the clumpiness of proto-planetary disks

(PhysOrg.com) -- The process of star formation, once thought to involve just the simple coalescence of material under the influence of gravity, actually entails a complex series of stages, with the youngest stars assembling ...

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