Boeing’s six decades in space have helped to facilitate a permanent off-planet U.S. presence and enabled our first footsteps ...

The idea that Earth has only one moon is considered to be true, but that isn't always the case. In fact, sometimes, it's had ...

For just a few months, Earth hosted a "second moon," much smaller than our faithful historical companion. This fleeting ...

Currently, more than 2 million miles away, the object is too small and faint to see without a powerful telescope.

Earth has a temporary, tiny companion. While not quite a "mini moon," since it will never be captured by Earth's gravity, ...

Astronomers are gearing up to study an asteroid that will revisit Earth in 2025. It is about 33 feet wide and will come quite ...

The asteroid 2024 PT5, which was captured by Earth's gravity on September 29 and orbited it as a temporary mini-moon for ...

Brian Hackney reports on the possible origins of Earth's recent "mini-moon" that is preparing to depart our orbit.

Russian cosmonauts aboard the ISS were forced to seal a hatch and don protective equipment after the arrival of a cargo ...

Astronomers used the Two-meter Twin Telescope to catch a "see-you-soon" image of the asteroid 2024 PT5 as it ended its stint as Earth's second moon on Monday (Nov. 25).