Meredith Garofalo

An X2.1 solar flare erupted from the prolific sunspot AR 3842 on Monday (Oct. 7), triggering radio blackout across North and South America.

College students are making "waves" with a discovery they made during the annular solar eclipse on Oct. 14, 2023.

Just when we thought the sun was taking a bit of a break, the sunspot AR3842 fired off two powerful solar flares, including a monster X7.1.

Temperature fluctuations above Antarctica in winter show the earliest warming of the stratosphere on record.

The sun unleashed an X1.3-class solar flare on Thursday (Sept. 12), increasing the likelihood of widespread auroras this weekend.

Hurricane Francine, the sixth storm of this year's Atlantic hurricane season, made landfall on the Louisiana coast late afternoon on Wednesday.

Satellites operated by the U.S. National Oceanic and Atmospheric Administration watched Tropical Storm Francine strengthen as it approaches the Gulf Coast.

NOAA is researching how to update its Space Weather Scales and how it can better communicate its space weather forecasts with the public and government agencies.

NASA's Advanced Composite Solar Sail System successfully spread its "wings" in space.

Three U.S. teams in NASA's Deep Space Food Finale won a combination of $1.25 million for developing delicious and safe food for astronauts.

A recent study confirms a European rock formation likely holds the clues to what was once a "snowball Earth."

For the first time in more than 20 years, the daily record for sunspots is likely to be broken during Solar Cycle 25.

July is in the books as yet another record-setting month of extreme heat and weather.

Getting a live play-by-play of astronauts on the moon could be possible through laser communications during future Artemis missions.

AI space biotech company shares with Space.com how a new research project in space will help benefit cancer patients on Earth.

Active sunspot AR3777 fired off the strongest of its three solar flares this week, sending another CME to impact Earth this weekend with a possible geomagnetic storm.

The first-ever "marine spaceport" is now complete and begins preparing for launches of balloons transporting tourists to the edge of space.

The next team of astronauts has been announced for Axiom Space's next commercial human spaceflight mission to the ISS.

Space.com got an up-close look at one of NOAA's Hurricane Hunter aircraft to more about how data from weather satellites help them on missions.

Add another pair of strong solar flares to the sun's list this year, as two X-class flares erupted on Monday morning (Aug. 5).

STEM advocate and space enthusiast Emily Calandrelli will fly to suborbital space with Blue Origin. She shares her story, and her excitement, with Space.com.

Sierra Space has conducted its second full-scale burst test of an inflatable space station module as it looks towards building the Orbital Reef commercial outpost.

A solar flare on July 23 was even bigger than a previous one that triggered May's global aurora storm, but this one was facing away from Earth on the far side of the sun.

Over the years, satellites have played an important role in monitoring oceans and coral reefs all across the globe.

A rapidly spreading wildfire burns through part of the largest national park in the Canadian Rockies as satellites track its growth and movement.