The sun's corona—the outermost layer of its atmosphere, visible only during a total solar eclipse—has long intrigued ...

"The new coronal adaptive optics system closes this decades-old gap and delivers images of coronal features at 63 kilometers resolution—the theoretical limit of the 1.6-meter Goode Solar Telescope," ...

Scientists develop new optical system that removes blur over fine-structure in the Sun's corona, revealing clearest images to ...

Two days after its new phase, the moon will make a close pass to Jupiter in the evening sky while the summer constellations ...

Meteor showers, eclipses and full moons will appear in California skies this summer. Mark your calendars with these dates, ...

For centuries, humans have wondered if trees are more than passive bystanders in nature. Do they sense? Do they communicate?

Astrotourism isn't new. In 2022, U.S. national parks saw 312 million visitors spend an estimated $23.9 billion to explore those International Dark Sky areas, mostly in the Southeast. Then on April 8, ...

NASA's PUNCH mission, a tiny constellation of four satellites, captured a photo of the moon drifting across the sky through a ...

SpaceX on Wednesday launched more than two dozen Starlink satellites into low-Earth orbit in the company's continuing quest ...

SpaceX early Tuesday launched another batch of Starlink satellites into low-Earth orbit from Florida's east coast.