New data from NASA's Juno orbiter reveals Jupiter is slightly smaller and more 'squashed' than scientists previously thought.

Humanity’s first successful lunar lander is missing. Sixty years ago the Soviet Luna 9 became the first human-made object to ...

See the 2,500 mile-long (4000 km) Valles Marineris in imagery captured the Mars Reconnaissance Orbiter. Global topography: ...

Jezero Crater is the home of NASA's Perseverance rover. See a bird's-eye view of the crater with this animated flyover ...

What everyone agrees on is that NASA needs a new spacecraft capable of relaying communications from Mars to Earth. This issue ...

Close-up observations of the Sun explain how solar flares start, grow, and send high-energy particles racing through space.

Solar Orbiter observations show that a medium-class solar flare formed through cascading magnetic reconnection events, ...

A Mars spacecraft has now been AWOL for more than a month. But NASA hasn't given up hope of restoring contact with the MAVEN ...

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

Since launching in February of 2020, the Solar Orbiter probe has been zeroing in on the Sun with a suite of instruments designed to unravel some of its secrets. Among those is an advanced ultraviolet ...

During a close approach to the Sun, the European Space Agency’s Solar Orbiter watched that tipping point unfold in unusually ...