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 ...

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

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

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

The instrument gathers high-resolution atmospheric data on temperature, humidity, clouds, greenhouse gases, aerosols, and trace gases.

New LANL research team could result in design changes to spacecraft to "harden" them against space environment discharges.

Kevin France, a professor of astrophysics at the University of Colorado Boulder, discusses the Habitable Worlds Observatory, ...

Using radial velocity measurements, an international team of astronomers has identified a second planet orbiting a nearby ...