Just a short post, since I do articles here from time to time to reassure those who worry about collisions with Earth for every new discovery. This new planet X is not even proved to exist yet. But if it is – it orbits way beyond Neptune. Is no more of a threat to us than Neptune was when it was discovered in the nineteenth century.
from Science 2.0 – Space http://ift.tt/1ZDx8JQ
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Telescopically 