Space Travel
The rocky road – If space travel is in our future, we need to learn how to identify and avoid the “rocks” in the “road.” Somebody else seems to be doing it right now, so we should be able to as well. China is monitoring meteors as well.
New research from NASA’s Spitzer Space Telescope reveals that asteroids somewhat near Earth come in assorted colors and compositions. Some are dark and dull, others are shiny and bright. Physicist David Trilling says, “These rocks are teaching us about the places they come from. It’s like studying pebbles in a streambed to learn about the mountains they tumbled down.” And if we know where they came from, we can figure out where they’re GOING (that is, if they’re going to impact the Earth).
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