Space.com

The three-body problem is a physics conundrum that has boggled scientists since Isaac Newton's day. But what is it, why is it so hard to solve and is the sci-fi series of the same name really possible?

Two astronauts performed tests inside full-scale mock ups of SpaceX’s Starship Human Landing System to test spacesuits and other hardware for NASA's Artemis 3 moon mission.

An interview with Raven Baxter and NASA's Ronald Gamble about the Stellar Dreams Project, which will give 100 telescopes to 100 families.

Europe's new Ariane 6 heavy-lift rocket is set to launch for the first time on July 9 after a series of delays.

On Episode 114 of This Week In Space, Rod and Tariq talk about the launches of Boeing's Starliner and SpaceX's Starship.

During a successful fourth flight test of Starship this week, SpaceX stated another big goal: Building one megarocket a day at its new Starfactory.

Kuiper Belt Object Arrokoth, the farthest object ever explored by a spacecraft, likely tastes sweet — and soapy.

Bill Anders, who as an Apollo 8 astronaut was one of the first people to fly to the moon in 1968, was killed on June 7 when the vintage plane he was piloting crashed off the coast of Washington.

NASA's Mars Sample Return mission has faced quite a few hurdles, and the agency has selected ten studies to try and find more affordable and quicker means of going about the project.

Virgin Galactic launched its seventh commercial spaceflight mission on June 8 during the final flight of its VSS Unity suborbital spaceplane.

SpaceX landed one of its Falcon 9 rockets for the 300th time tonight (June 7), notching the milestone during a Starlink satellite launch.

Jupiter and Earth's oceans have more in common than you might think.

An exotic molecule stabilized by intense pressure found in the icy depths of Neptune and Uranus could help explain a long-standing mystery.

The United States Air Force and U.S. Space Force conducted two routine test launches of unarmed intercontinental ballistic missiles this week from Vandenberg Space Force Base.

In the fifth episode of "Doctor Who," called"'Dot and Bubble," a city has been invaded by giant, human-eating space slugs, and they seem to have a plan.

South Korea has announced the creation of a new space agency and is aiming to land its own spacecraft on the moon and Mars in the coming decades.

Taking almost a full hour to rotate rather than fractions of a second, ASKAP J1935+2148 is the slowest spinning radio-blasting neutron star ever seen.

Crew members selected for a planned flight around the moon funded by Japanese billionaire Yusaku Maezawa shared public feelings of disappointment after the mission's cancellation.

El Gordo is a massive collection of colliding galaxies 7 billion light-years away. Its odd behavior could suggest dark matter interacts with itself.

Billionaire Jared Isaacman wanted to conduct a private Hubble Telescope reboost mission. NASA says 'not yet.'