Psyche’s twin cameras recorded long-exposure images of Earth and the Moon. From 180 million miles away, both appeared as faint dots.

Japan plans to join a European Space Agency mission to observe an asteroid set for a close flyby of Earth in 2029, a source familiar with the matter said Wednesday, with the project seen as crucial to ...

Sixty-six million years ago, a massive asteroid struck Earth and caused the extinction of the dinosaurs, opening the way for mammals and eventually humans to dominate the planet. But what if that ...