Ukrainian scientists have discovered a massive asteroid; NASA responds. This diagram shows the orbit of asteroid 2013 TV135 (in blue), which has just a one-in-63,000 chance of impacting Earth. Its ...
Quick update on NASA's amazing plan to lasso an asteroid: they're making progress on the ion propulsion engine they'll need for the mission, one month after president Obama proposed giving NASA $100 ...
WEST LAFAYETTE, Ind. — If the asteroid rapidly approaching us this week were to impact rather than nearly miss Earth, it would explode with a four-megaton force near what the military calls optimum ...
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