Earth will soon have a visitor — and not of the extraterrestrial kind. Astronomers found a small asteroid that will orbit our ...

September will see the appearance of C/2023 A3, also known as Tsuchinshan–ATLAS, that has traveled for tens of thousands of ...

A temporary “mini-moon” will whirl around Earth for about two months as our planet’s gravity captures a small asteroid in its orbit.

Soon after, Rosetta will deploy its lander, Philea, to study the mysterious comet up close, and the trio will travel together around the closest point in its orbit of the sun. (Video: ESA ...

What’s the difference between an asteroid and a comet? A comet is basically a dirty ... but mostly they just quietly orbit the Sun, minding their own business. Yet these two space objects ...

The moon will soon have a companion in Earth's orbit for a limited time. An Arjuna asteroid will become a "mini-moon" event for nearly two months starting Sept. 29, according to a study published ...

Polaris Dawn will fly higher than any crewed mission has traveled since the Apollo 17 moon missions in December 1972, reaching an altitude three times higher than the orbit of the ...

A newly discovered asteroid, also referred to as a mini-moon or second moon, is set to enter Earth's orbit temporarily this fall.

When the mission commences with the launch of a SpaceX Dragon capsule, four private astronauts will rocket into the upper reaches of Earth's orbit, where they will conduct the first-ever ...

Editor's Note: Launch of the Polaris Dawn mission, the first commercial flight to Earth orbit featuring a non-government ... cabin while slowly decreasing air pressure to help remove nitrogen ...

The US Air Force (USAF) has been increasing efforts to improve its satellite communications (SATCOM) using multi-orbit capabilities in order to enable its aircraft fleet to operate and succeed in ...

The moon will soon have a companion in Earth's orbit for a limited time. An Arjuna asteroid will become a "mini-moon" event for nearly two months starting Sept. 29, according to a study published in ...