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Rare meteorites created in violent celestial collision
A tiny fraction of meteorites on earth contain strikingly beautiful, translucent, olive-green crystals embedded in an iron-nickel matrix. Called pallasites, these "space gems" have fascinated scient ... more
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Titan is also a green powerhouse
Not only is Oak Ridge National Laboratory's Titan the world's most powerful supercomputer, it is also one of the most energy-efficient. Titan came in at number three on the Green500 list. Organized ... more
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Instrument Will Observe Spiral Galaxy Near Big Dipper's Handle
Astrophysicist Timothy Cook loves to build things, particularly small scientific satellites and instruments, putting them on a sounding rocket and then shooting them into space. "How can one not fin ... more
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A Reborn Planetary Nebula
These images of the planetary nebula Abell 30, (a.k.a. A30), show one of the clearest views ever obtained of a special phase of evolution for these objects. The inset image on the right is a close-u ... more
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