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Technology tackles space junk

Orbital debris can cause problems for space travel and satellites, so scientists have banded together to come up with innovative solutions, from laser cannons to proactive removal.

dateOct 22, 2015 in Space Exploration
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What are asteroids made of?

What are asteroids made of? Asteroids are made mostly of rock—with some composed of clay and silicate—and different metals, mostly nickel and iron. But other materials have been found in asteroids, as well.

dateSep 14, 2015 in Space Exploration
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