The Sentinel-6 Michael Freilich satellite will enhance forecasts and provide detailed information on large-scale ocean currents.

The galaxy in this Hubble image looks more like a cinnamon bun than a megastructure of stars and gas in space.

Sentinel-6 Michael Freilich, the latest in a series of spacecraft designed to monitor our oceans, is ready for launch.

NASA’s James Webb Space Telescope marked a significant testing milestone with the deployment of a critical structure: the Deployable Tower Assembly.

NASA’s Nancy Grace Roman Space Telescope will detect vestiges of sound waves that once rippled through the primordial cosmic sea.

Astronomers calculating the amount of dust in galaxies have found more dust than expected, and they don’t know where it’s coming from.

The first rover to be rigged with microphones, Perseverance picked up sounds of its inner workings during flight.

The Blue Ring Nebula, which perplexed scientists for over a decade, appears to be the youngest known example of two stars merged into one.

Four astronauts are heading to the International Space Station following launch on the first NASA-certified commercial human spacecraft system.

STEVE, or Strong Thermal Emission Velocity Enhancement, is still new to scientists, who are working to understand all its details.

Plumes of water vapor that may be venting into space from Jupiter's moon Europa could come from within the icy crust itself, according to new research.

Mars is about to get a new stream of weather reports, once NASA's Perseverance rover touches down on Feb. 18, 2021.