04/12/2004

The Moon Eclipses Jupiter

by Dr. Tony Phillips Sky watchers in parts of North America can see the Moon glide in front of Jupiter before sunrise on Tuesday, Dec. 7th. Picture this: You're an astronaut driving a moon buggy across the dusty plains ...

Robots: our helpers in space

A big advantage of space robots is that they need neither food nor drink and can support very inhospitable conditions. More important still, although expensive to design and produce, their loss is always preferable to that ...

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