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Astronomer Gianluca Masi and his Virtual Telescope Project will host a special livestream on Oct. 24 beginning at 1:30 p.m.

If an asteroid is on a collision course with the moon, what should humanity do? Try to nudge the space rock out of the way before it strikes? Obliterate it with a nuclear explosion? Such a cosmic ...

A potentially hazardous asteroid spanning the length of the Washington Monument will make a safe, close approach to Earth on Sept. 18 and you can watch the flyby live online courtesy of the Virtual ...