YR4 has a 2.2% chance of striking Earth in seven years, but recent updates keep pushing the odds in the wrong direction.

A large asteroid is predicted to have a close encounter with Earth. NASA has issued a warning, here's what we know about the ...

An asteroid could potentially hit Earth in eight years — though the chances are very small, according to scientists. The ...

To get somewhere in outer space, you can’t exactly drive in a straight line. Orbits are tricky things, and sending a probe to ...