'How planets revolve' is possibly one of the first extraterrestrial phenomena that educators taught students at school. They are told that in this phenomenon, the planets move around the sun in fixed ...

NASA has confirmed a small asteroid named 2025 PN7 is a quasi-moon of Earth. The space rock orbits the sun at a similar pace to Earth, making it appear to follow our planet. This quasi-moon is ...

The planet’s rotation fluctuates as it travels around the sun, and measurements suggest we’re losing more than a millisecond during the long days of summer. By Jacey Fortin This article was updated ...