A recently observed object called 2025 PN7 was found orbiting near the Earth. The quasi-moon is expected to accompany our ...

Earth asteroid lurked undetected for decades until a telescope in Hawaii spotted it earlier this year. It may be Earth's ...

The Moon, our constant celestial companion, is drifting away from Earth at a slow but measurable rate. According to a ...

How does a planet’s size influence its orbit around its parent star? This is what a recent study published in the Proceedings of the National Academy of Sciences hopes to address as a team of ...

According to NASA, a low Earth orbit (singular) is any orbital trajectory that stays within 1,200 miles (2,000 kilometers) of ...

Space junk has filled up so much of Earth's orbit that it's endangering satellites and astronauts. The company Kayhan Space issues roughly 1,000 space-collision warnings per day. Earth-orbit experts ...

Asteroid 2025 QV5, which was first spotted in late August, will make a close approach to Earth on Wednesday (Sept. 3). It ...

Editor’s Note: This story was originally published by Grist. Sign up for Grist’s weekly newsletter here. At any given moment, more than 10,000 satellites are whizzing around the planet at roughly ...

Kosmos 482 has been trapped in Earth’s orbit for 53 years but its wandering journey is coming to an end. The failed Venus mission is expected to reenter through the atmosphere in a dramatic fall ...

The Bion-M No. 2 biosatellite is being readied for its planned Aug. 20 launch atop a Soyuz-2.1b rocket from Baikonur ...

SpaceX launched four people into space Monday evening on a first-ever human mission to orbit Earth's polar regions. After liftoff from the U.S., a typical crewed launch flies to the east or northeast.