The sunspot region 4366 fired off dozens of powerful solar flares in 24 hours, including the single strongest flare since ...

A NASA mission is underway to map the heliosphere, which is a huge protective bubble around the solar system that was created by the sun.

Solar flares and geomagnetic storms can have very significant effects on satellites, airplanes and GPS and electrical systems ...

Scientists have created a highly detailed computational model of Jupiter's atmosphere to peer below its thick clouds.

For over 50 years, we thought we knew the size and shape of Jupiter, the solar system's largest planet. Now, Weizmann ...

Stargazers can see six planets all in one evening during the second month of the year, especially Mercury, which is usually ...

A 13-atom molecule containing sulfur has been discovered in interstellar space for the first time, providing insight into the origins of the chemistry of life.

Using data collected by NASA's Parker Solar Probe during its closest approach to the sun, a University of Arizona-led ...

NASA completes assembly of the Nancy Grace Roman Space Telescope. The observatory will enter final testing before launch, providing infrared surveys and cosmic data for astronomy research.

New simulations suggest Jupiter holds far more water than once thought, reshaping ideas about how the largest planet formed.

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

Jupiter and Saturn host strikingly different polar storms, despite being similar giant planets, and scientists have long wondered why. New simulations suggest the answer may lie deep below the clouds.