NASA's Mars Reconnaissance Orbiter has clocked a total of 60,000 laps around Mars, during which time the probe has collected invaluable data about the planet's surface and atmosphere.
Astronauts on the International Space Station will begin testing an innovative algae-powered bioreactor to assess its feasibility for future long-duration space missions.
The NASA Innovative Advanced Concepts (NIAC) program funds 18 project proposals. The projects are aimed to design and test technology concepts for potential future NASA missions.
Astronomers have assembled a mosaic of nearly 7,500 images taken of the distant universe, creating the largest and most comprehensive "history book" of galaxies ever made.
An internal memo to some workers at NASA's Kennedy Space Center is warning that employees could be fired for sharing images after a video of SpaceX's Crew Dragon explosion leaked online last week.
Astronomers found the size of the smallest star measured to date by tracking the shadows of nearby asteroids.
Russia may soon decommission its most historic launch site, from which the world's first satellite, Sputnik, was lofted into space.
A flying observatory has pinpointed the first type of molecule that formed in the universe after the Big Bang.
Astronomers have detected "plasma rain" pouring down over the solar surface, which may explain why the sun's outer atmosphere is so much hotter than the star's surface.
The International Space Station stands out against the lunar backdrop in a series of stunning new photos from NASA.
New data from the European Southern Observatory shows raging storm clouds of iron and silicates swirling above a distant exoplanet.
A Japanese spacecraft studying the near-Earth asteroid Ryugu beamed home new data revealing that the space rock has less water than scientists expected.
A new image from the European Southern Observatory captures a cosmic bat tucked away in one of the darkest corners of the Orion constellation.
A new featurette for the highly anticipated "Captain Marvel" offers a behind-the-scenes look at how the visual effects were crafted for IMAX screens.
Galaxy clusters are some of the most massive structures found in the universe — and apparently they sound pretty spooky, too.
The aftermath of a massive stellar explosion turns out to be much dustier than scientists expected, recent NASA observations reveal.
Architectural students working with the European Space Agency have created a new concept for a sustainable lunar habitat.
NASA's Hubble Space Telescope captured a stunning new view of a spiral galaxy that wandered too close to the massive Coma galaxy cluster and is being stripped of its gas.
The first privately-developed lunar spacecraft has arrived in Florida in preparation for its launch next month.
Here's Space.com's guide to some of the most exciting space movies of 2019: "Star Wars," "Ad Astra," "Avengers: Endgame" and more.
Citizen scientists unveiled a distant exoplanet that is believed to be roughly twice the size of Earth and located within its star's habitable zone.
The space tourism firm XCOR Aerospace Inc. filed for bankruptcy in 2017 and now many ticket holders are left wondering if they'll ever get a refund.
The first-ever private moon mission is expected to launch in February 2019, and it will carry some extra-special Israeli cargo to the lunar surface.