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Craters in the Lab
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Astronomy, Science, new science.
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Photo Credit: Mel Acheson, C.J.Ransom Jul 02, 2004 Craters in the LabPlanetary scientists have long assumed that most craters in the solar system are due to impact. But laboratory experiments reveal that electrical discharge can replicate observed cratering patterns in surprising ways. How...
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Olympus Mons
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Alternative theories
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Mars photo credits: MSSS/THEMIS Lab photos on upper right by Wal Thornhill Jul 05, 2004 Olympus MonsOlympus Mons on the planet Mars defies categorization as a "volcano," but bears a striking similarity to a lightning blister.Olympus Mons on the planet M...
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NGC 6302: Bug Nebula
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Astronomy, Science, new science.
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Credit: A. Zijlstra (UMIST) et al., ESA, NASA Jul 07, 2004 NGC 6302: Bug NebulaA hundred years ago astronomers assumed that any body larger than an asteroid would be constrained by gravity to a spherical shape. But as telescopes got better, reality intruded.Planetary nebulae in particular,...
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