Astronomers have recently identified a mysterious “glowing object” in Earth’s orbit. This intriguing discovery has stirred the scientific community and space enthusiasts, prompting speculation about ...

We usually think of satellites as small objects orbiting planets or stars. But in the broader universe, galaxies themselves can have satellites—smaller galaxies bound by gravity that orbit a larger ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Say hello to 2025 PN7, a “quasi-moon” that appears to have ...