Recently, scientists discovered the fastest-spinning large asteroid in the solar system.It’s about the length of eight football fields — but it fully rotates every two minutes, or even a little faster ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously unknown world may be lurking in the outer reaches of the solar system. The ...

A long-lost planet that helped create the Moon may have formed much closer to the Sun than scientists once thought, according to new research. Scientists have discovered that Theia, the ancient planet ...