Meredith Garofalo

NASA astronauts headed to Arizona desert to rehearse moonwalks and test technology for the Artemis mission.

After quite the aurora experience across Earth this past weekend, beastly sunspot AR3664 could give Mars quite the same solar spectacular.

With the decrease of potential impacts from AR 3664, forecasters are monitoring new sunspot regions developing on the eastern half of the sun.

The behemoth sunspot AR3664 has finally rotated out of Earth's view, firing off two more big solar storms on its way out the door. Will it come back?

While the weekend solar event gave us quite the show in the night sky, it also helps scientists learn more about space weather to continue to improve forecasts.

A monster sunspot on the sun's surface just won't quit, erupting yet again this week with a whopping X8.7-class solar flare on Tuesday (May 14).

Intense solar activity generated the most extreme geomagnetic storm since 2003 on Friday (May 10), and the action could continue into this week. Here's how it happened.

Want to save all the calories from Mother's Day brunch? You can still "sweeten" her holiday with an opportunity to see the northern lights again tonight!

Just when we think we’ve seen the most powerful of flares from a colossal sunspot, the sun unleashed kicked off the strongest eruption of the weekend yet and is still crackling with solar storms.

A beastly sunspot that's 15 times the diameter of Earth remains highly active — and you might be able to spot it with your eclipse glasses!

The NOAA has bumped up its geomagnetic storm watch for May 11 to a "rare" level as solar activity continues at high levels and at least four coronal mass ejections propel toward Earth.

Sierra Space's first Dream Chaser space plane has finished rigorous environmental testing in Ohio and is being prepped for the journey to its Florida launch site.

Axiom Space, which was founded in 2016, has already organized three private crewed missions to the International Space Station, and it's building the spacesuits for NASA's Artemis moonwalkers.

ispace will send a time capsule of 275 human languages to the moon aboard a lunar lander as part of its Hakuto-R Mission 2 later this year.

From tracking hazards in the ocean to predicting the strength of hurricanes, NOAA's GeoXO series continues on the legacy of the GOES-R series — but with exciting upgrades.

A recently detected sunspot region unleashed a powerful X4.5 solar flare early Monday morning, causing radio blackouts throughout parts of the Eastern Hemisphere.

After 25 years of drifting undetected in space, an experimental satellite that launched in 1974 has been found using tracking data from the U.S. Space Force.

For National Space Day, SpaceKids Global announces a competition to send eight kids to Florida for an adventure at Blue Origin and NASA's Kennedy Space Center.

NASA's PREFIRE mission will deploy a pair of satellites from twin launches aboard Rocket Lab's Electron rockets that will contribute to climate change studies in the Arctic and Antarctica.

NASA picked a crew of four volunteers to undergo a simulation of life on Mars. The project will begin on May 10.

With its "mighty mast," NASA's Polar Exploration Rover dubbed VIPER continues to be prepped for its mission to the moon slated for late 2024.

A recent $32 million contract between the U.S. Space Force and Rocket Lab will lead to the creation of a spacecraft to enhance national security supporting space domain awareness.

NASA is sending a technology demonstrator to the moon on the upcoming private Firefly Blue Ghost Mission 1 in order to test how to repel and remove lunar dust using electricity.

To commemorate Earth Day, enjoy these 12 NOAA satellite images that showcase the different ways this critical technology helps scientists keep an eye on our planet.

Six newly selected NASA airborne campaigns will focus on a range of studies focusing on Earth and its changing climate.