During a special observation run from Jan. 15 to Jan. 22, the Transiting Exoplanet Survey Satellite ( TESS) repeatedly ...

Earth's moon is both the brightest and the largest object in the night sky, in terms of apparent size, making it a ...

Artemis 2 will send a crew of four astronauts on a 10-day mission around the Moon. Here is the mission's flight path, step by step.

Earth, it turns out, is far from naked in space. New measurements reveal that our planet sits inside a faint but global ...

The dazzling lights of the aurora are created when high-energy particles from space collide with Earth's atmosphere. While ...

Learn how to calculate the Earth’s orbital speed using fundamental principles of orbital mechanics and gravity. This video walks through the key equations and physical reasoning that explain how Earth ...

Scientists watched a solar flare grow from tiny magnetic sparks into a violent plasma-raining avalanche on the Sun.

A full moon is "as close as we come to seeing the Sun’s illumination of the entire day side of the Moon,” NASA says.

NASA’s Jet Propulsion Laboratory (JPL) is carefully watching an asteroid called 2025 XM, a space rock about 84 feet (26 ...

In lush South Florida, trees and bushes grow all year round. And that means yard waste and dead trees never stop piling up.

In 2010 an astronaut on the ISS observed a bizarre phenomenon. When he glanced out the window, he saw the Moon looked ...