What could we build with lunar regolith?

It has often been likened to talcum powder. The ultra fine lunar surface material known as the regolith is crushed volcanic rock. For visitors to the surface of the moon it can be a health hazard, causing wear and tear on ...

Video: Total solar eclipse seen from space

A total solar eclipse swept across North America yesterday, blocking out the sun momentarily with parts of the continent plunged into darkness. Geostationary satellites orbiting 36,000 km away captured images of the rare ...

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