NASA is set to launch an incredible new atomic clock into orbit on a Falcon Heavy tomorrow (June 24) in a technology demonstration mission that could transform the way humans explore space.

NASA will be launching two identical miniature satellites next week as part of a project designed to help scientists understand how Earth's atmosphere muddies the radio signals we rely on.

A gorgeous new photo from the Hubble Space Telescope depicts Messier 90, a spiral galaxy roughly 60 million light-years away from our own Milky Way — but getting closer.

Space enthusiasts may recognize the face of a new Barbie doll touring at special events around the world; she looks just like European Space Agency (ESA) astronaut Samantha Cristoforetti.

The Science Channel series "Space's Deepest Secrets" returns tonight (March 19) at 10 p.m. EDT with a look at a mysterious interstellar visitor.

After SpaceX launched a Celestial Buddies Earth plush toy, the stuffed planet quickly sold out. Now a new and improved version is available that comes with a lesson on climate change.

The iconic doll Barbie will look to the heavens as an astrophysicist and astronaut this year in an effort by toy-maker Mattel to inspire young girls into STEM fields.

The cosmos may be be breathtakingly beautiful, but it's also deadly to human explorers.

Before NASA's Mars 2020 mission is ready to launch toward the Red Planet, they have to paint the new rover — a task more challenging than it sounds.

YouTube Premium subscribers can now watch all 10 episodes of the new intergalactic thriller "Origin," and the first two are free for anyone to stream.

An awe-inspiring photo provides a breathtaking new view of Saturn's icy rings, showing that the iconic features are translucent.

Scientists have found hundreds of galaxies hiding in plain sight, hidden by the light emitted by an extremely active supermassive black hole.

Two NASA scientists recently returned from a two week, 470-mile (760 kilometers) expedition in one of the most barren landscapes on Earth.

When NASA astronaut Kjell Lindgren traveled to the International Space Station (ISS) in 2015, he was expecting the air to smell a little like a locker room, he says in a new video posted by NASA.

NASA technicians have officially begun the assembly, test and launch operations (ATLO) phase of development on the agency's next Mars rover, keeping the project on track for an expected 2020 launch.

NASA plans to launch two new satellites by the end of 2018 in order to explore Earth's ice sheets, sea ice, glaciers, snow cover and permafrost, collectively known as the "cryosphere."

Amateur astronomers had 12 spectacular new images to look to during this year's Messier marathon, a skywatching challenge that happened on the weekend of March 17 and 18.

Anyone who's wished their Legos would come to life can make their dream come true with Circuit Cubes from Tenka Labs.

Your favorite space-themed TV and movie franchises — "Star Wars" and "Star Trek" — have some awesome new toys, collectibles and apparel coming out this year, and we got a sneak peek at Toy Fair 2018.

A new analysis of two lunar missions suggests that water could actually be spread across the moon's surface rather than concentrated at the poles.

The annual Toy Fair in New York delivers again, providing Space.com with a look at a dramatic motorized rocket recently released by Spin Master.

A team from MIT has won the top prize for architecture in 2017’s international Mars City Design competition, which asks participants to design habitats that could one day be built on the Red Planet.