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

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 ...

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

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

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

(CNN) — 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 ...

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

Earth is the only planet in our solar system with a single moon, making it a rare phenomenon for a planet of its kind.

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

Roll out the cosmic welcome mat for our solar system’s newest resident: a never-before-seen moon orbiting Uranus. A team of astronomers announced Tuesday that a new satellite measuring roughly 90 ...

Roll out the cosmic welcome mat for our solar system’s newest resident: a never-before-seen moon orbiting Uranus. The Webb telescope’s observations of Uranus are giving scientists better insight into ...