There could be a ninth planet in our Solar System after all - and no, it's not Pluto. Instead, it's the theoretical Planet X, also called Planet Nine, a wide-orbit planet that would circle the Sun ...

For the past two decades, NASA has focused on identifying 90% of near-Earth objects that could pose a threat to our planet. The space agency has made steady progress in detecting dangerous asteroids ...

We could be overlooking an entire population of asteroids that pose a threat to Earth on the very simple basis that they're extremely hard to see. In the space shared by the orbit of Venus, hundreds ...

New research on the orbits of these mysterious asteroids near Venus stress the need for better space rock surveillance. NASA's Parker Solar Probe captured this image showing the nightside surface of ...