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Which planet is closest to the sun?
Mercury takes only 88 Earth days to orbit the sun.
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Is an asteroid really heading for Earth? This is what Nasa has to say
Scientists have spotted an asteroid which they estimate has a more than 2 per cent risk of hitting Earth in eight years time ...
An asteroid could collide with Earth: What could happen if it hits, and should we worry?
An asteroid could hit Earth, but scientists are continuing to gather data to understand its trajectory and potential impact ...
Astronomers have spied an asteroid that may be heading for Earth: What we know so far
On 27 December last year, astronomers using the ATLAS survey telescope in Chile discovered a small asteroid moving away from ...