A careful statistical comparison of observations recorded by NASA’s Juno mission and the Planetary Science Institute’s Io Input Output observatory (IoIO) shows that IoIO observations reliably predict the density of Jupiter’s plasma disk, an important part of Jupiter’s magnetosphere, according to a new Geophysical Research Letters paper co-authored by Planetary Science Institute Senior Scientist Jeff […]

UK astronomers are a step closer to playing a leading role in NASA’s search for alien life in the coming decades as they continue developing one of the core instruments of the Habitable Worlds Observatory (HWO). The exciting mission—the U.S. space agency’s next flagship space telescope after the Nancy Grace Roman Space Telescope—is expected to […]

The worlds of the solar system are exciting and, so far, mostly pristine places for planetary scientists to study. As space missions continue to travel to Mars, Europa, asteroids and other worlds, questions arise about keeping them safe for continued exploration and observation.

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Astronomers searching for signs of extraterrestrial intelligence may have been missing alien signals in part of the radio spectrum that has not recently been explored.

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NASA is about to launch a space observatory that could help settle some of the biggest mysteries in modern astronomy. The Nancy Grace Roman Space Telescope will study how the universe began, what it is made of and how it has evolved over time.

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Millions of people across the UK marveled at the spectacular northern lights that lit up the night sky in May 2024. But while the display captivated skywatchers, the geomagnetic storm behind it also served as the biggest test in a generation of the UK’s preparedness for severe space weather. So did it pass?

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A commercial robotic spacecraft called LINK launched on an emergency mission to save NASA’s Neil Gehrels Swift Observatory, which has been slowly falling toward Earth, on July 3, 2026. Over the coming weeks, LINK, built by Katalyst Space Technologies, will try to grasp the telescope, then spend months raising it to a safer orbit.

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The Whirlpool galaxy (M51) is a classic grand spiral galaxy. It was the first object identified as a spiral, way back in 1845. At the time, it and other galaxies were considered spiral nebulae, since astronomers didn’t know other galaxies existed. Edwin Hubble finally proved that there were other galaxies in the early 1920s.

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