Harvard's Avi Loeb says a rare sun alignment on 22 January could prove interstellar visitor 3I/ATLAS is an alien spaceship.

Solar storms, known as coronal mass ejections (CME), are surprisingly common. When detected in the vicinity of Earth, some ...

Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on ...

Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around ...

Ancient galaxies colloquially known as "little red dots" have proven a mystery ever since astronomers discovered them three ...