And now it's 250 million miles away.

Every eleven years, the sun's magnetic field flips. Sunspots—dark, cooler regions on the sun's surface that mark intense ...

With the launch of Artemis II planned in a few weeks, NASA is ready to monitor the sun during the mission in order to protect ...

IMAGES of an unusual pyramid-shaped structure on Mars that look like those in Egypt have reignited wild theories about aliens ...

NASA’s Parker Solar Probe made the closest flyby of the sun ever made by a spacecraft in Dec. 25. See the views it captured ...

As four astronauts travel around the moon on NASA's Artemis II mission, they will venture beyond Earth's protective magnetic field. The crew's spacecraft, Orion, will carry and protect them as they ...

Heavy exposure to radiation can increase the risk of cancer or impair cognition and performance.

"Sometimes the best science happens by accident,” Co-investigator John Noonan, a research professor in the Department of Physics at Auburn University in Alabama, said in a statement.

NASA’s twin ESCAPADE spacecraft will uncover how the Sun stripped Mars of its atmosphere. Mars is a very different world ...

New observations are helping scientists peer beneath the Sun’s surface, revealing where its magnetic activity may truly begin. Every 11 years, the Sun’s magnetic field reverses. As that cycle unfolds, ...

Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much of its atmosphere, helping transform it from a warmer, wetter planet into a ...

To capture unprecedented, high-resolution images of distant exoplanets, NASA is actively developing a mind-bending mission that uses the Sun’s massive gravitational field as a giant magnifying glass.