Our planet has apparently had a small companion that went undetected for decades. What took so long to find it and why was it ...

For more than sixty years, a tiny asteroid has been moving in step with Earth, hidden from view until recently. Astronomers ...

Learn more about tides and tidal bulge, and how they’re contributing to the moon drifting away.

A University of Idaho professor was part of a team that discovered a new moon in the solar system. The UI announced Thursday that physics professor Matthew Hedman helped discover a moon orbiting ...

The provisionally named S/2025 U1 is so small it had gone unnoticed by probes and telescopes for the past 40 years.

A small asteroid has been quietly following Earth’s orbit for decades—unseen, unbothered and, until recently, completely ...

Astronomers have made an astounding discovery, finding a new ‘moon’, or quasi-moon, that has been following Earth for over ...

Earth has a new quasi-moon, which is called 2025 PN7. A new paper has revealed that it has been orbiting near our planet ...

Astronomers using the powerful eye of the James Webb Space Telescope have spotted a previously unknown moon whirling around Uranus, according to NASA. The discovery boosts the number of moons known to ...

In a recent breakthrough, astronomers have discovered a new “quasi-moon” that has been orbiting Earth after decades of being ...

Astronomers discovered a small quasi-moon named 2025 PN7 orbiting near Earth, first observed on August 2, 2025, from Hawaii’s ...