7 years ago
Asteroid will pass Earth well inside moon's orbit, giving us a chance to practise for a collision
Astronomers around the world will turn their eyes to the sky Thursday as a roughly 20-metre-wide asteroid will fly well within the moon's orbit, about 50,000 kilometres above Earth. While this asteroid currently poses no threat to Earth, scientists are hoping to gather information to refine its orbit. With government agencies, they are also preparing for a day when a similarly sized asteroid could enter Earth's atmosphere.
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