For practically as long as NASA's Hubble Space Telescope has circled Earth, astronomers have wanted to use it to see a comet ...

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 ...

The Perseverance Mars rover's Mastcam-Z camera the Martian moon Phobos transit the Sun. See real-time and time-lapsed views ...

With the Artemis II mission launching its astronauts outside Earth's magnetic field for the first time on 1 April 2026 in over 50 years, NASA is setti.

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 ...

The Sun was in attendance - not always the case - for astronomy educator Alice Enevoldsen's spring-equinox sunset watch last ...

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

The ESA/NASA Solar and Heliospheric Observatory (SOHO) has officially discovered 5000 comets. Comet number 5000 was spotted ...

In an incredibly lucky cosmic accident, NASA’s Hubble Space Telescope captured a comet breaking apart in real time—something astronomers have long tried and failed to observe. The comet, C/2025 K1 ...

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 of the sun's atmosphere during the flyby. Credit: NASA's Goddard Space Fligh ...