Despite promising technology demonstrations, there is no one-size-fits-all solution for the growing problem of taking out the orbital trash

The upcoming atmospheric re-entry of a Chinese Long March 5B rocket body is a reminder of a much larger problem, experts say.

The Wednesday (April 28) launch of the Tianhe core module will be followed by a series of cargo and crew liftoffs aimed at completing the construction of China's space station by the end of 2022.

The X-37B space plane is being used to flight-validate the best ways to gather the sun's energy for power beaming from Earth orbit.

Binnie retells it all in "The Magic and Menace of SpaceShipOne."

If you are perplexed by reports of unidentified aerial phenomena and possible visitations of alien spacecraft, you can take action with do-it-yourself sky-monitoring gear.

China's Tianwen-1 spacecraft fired its engines Monday (Feb. 15) to place it in a polar orbit around the Red Planet.

Space.com recently talked with Breakthrough Initiatives executive director Pete Worden about a signal coming from the vicinity of Proxima Centauri, and about the search for alien life more generally.

Space.com caught up with NASA Planetary Defense Officer Lindley Johnson to discuss recent events and what's on the planetary-defense agenda in the coming year.

The Chang'e 5 return capsule carrying lunar samples is headed for a Beijing laboratory for opening, with a research team eagerly awaiting their chance to start studying the fresh moon specimens.

It's a fabric first for China.

New technologies could allow exploration of skylights, lava tubes and caverns on the moon — underground environments that human explorers may be able to exploit in the not-too-distant future.

Among the many payloads that will fly to the moon aboard Astrobotic's robotic Peregrine lander next year are capsules containing DNA samples and symbolic portions of cremated remains.

There's a rising call for "unidentified aerial phenomena" to be studied scientifically, perhaps even using satellites to be on the lookout for possible future events.

Chinese has selected a third group of astronauts for the nation's coming space station, the China Manned Space Agency announced.

Four small spacecraft are being readied for moonbound treks to help quench a thirst for new data about lunar water ice.

A high-tech pioneer for NASA's moon-orbiting Gateway space station is being readied for liftoff early next year.

U.S. military officials have increasingly flagged a new role in guarding American assets and interests in Earth-moon space.

Four Indian astronauts continue to train at Russia's Gagarin Cosmonaut Training Center near Moscow as prospective space travelers for India's crewed Gaganyaan project.

Can humanity mine water ice at the moon's poles without compromising these regions' great scientific potential?

China has built a testing ground for its first Mars mission, Tianwen-1, which launched to the Red Planet in July and aims to land a rover on the surface in April 2021.

The Pentagon just announced the creation of a task force to analyze and understand the "nature and origins" of UFOs. Here's what the much-hyped news means.

Russia's Luna-25 moon lander is starting to come together ahead of its planned launch next year.

China's bid to explore Mars involves several other nations for tracking, orbital relay of data and science instrument support.