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Tag Archives: Asteroids
Is NASA’s asteroid-capture mission legal?
NASA recently announced its plan to find and capture a small asteroid and place it in a stable orbit near the moon. (If you have a few minutes to spare, check out this cool animation of the proposed mission here.) But would an asteroid-capture mission … Continue reading
What is the probability that a large asteroid will collide with Earth?
According to Wikipedia, asteroids with a 1 km diameter strike Earth every 500,000 years on average. Moreover, “Large collisions–with 5 km (3 mi) objects–happen approximately once every twenty million years. The last known impact of an object of 10 km (6 mi) or more in diameter was … Continue reading
prior probability 