The interstellar comet 3I/ATLAS has a thick irradiated crust that no longer resembles its home star system, simulations and ...

Scientists have spotted elusive "magnetic waves" in the sun's atmosphere that may explain why the sun's corona is much hotter than its surface.

Follow the space program since the moon landing in the four-part documentary "Once Upon a Time in Space". Here’s how to watch ...

Melissa underwent extreme rapid intensification, strengthening to a rare Category 5 with winds of 175 mph and stronger gusts, making it the strongest storm on the planet this year. Follow for live ...

Satellites around Earth watched as a powerful Hurricane Melissa traveled toward Jamaica.

A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

Scientists have been searching for radio signals from hypothetical alien civilizations using radio telescopes for decades.

The International Space Station marks a quarter-century of continuous occupancy this weekend, boasting a guest list of nearly ...

Hurricane Melissa has caused devastating flooding in Haiti, leading to at least 20 deaths on the island. Many homes have been ...

NASA’s Habitable Worlds Observatory "will draw on technologies proven by the agency’s Hubble, Webb and upcoming Roman Space ...

Melissa is forecast to become the first Category 5 landfall in the Atlantic Basin since Dorian roared into the Bahamas in 2019. There have been 32 Category 5 hurricanes in the Atlantic since the use ...

SpaceX's Falcon 9 will launch 29 Starlink satellites into low-Earth orbit. The launch is set to take place around 12:15 p.m., from Central Florida's Cape Canaveral Space Force Station.