Jupiter used to be twice as big as it is now — it could have held 2,000 Earths
A new study reveals early Jupiter was twice its current size with a magnetic field 50 times stronger.
Perseverance rover rolls into ‘Crocodile’ region on Mars to hunt for super-old rocks
NASA's Perseverance rover is exploring a new Mars region called Krokodillen, which is thought to harbor some of the oldest and most intriguing rocks on the Red Planet.
Lightning on alien worlds may fail to spark life, simulations suggest
New research has found that lightning, while not very common, can occur on tidally locked exoplanets like our nearest neighbor, Proxima b.
Powerful Mother’s Day geomagnetic storm created radio-disrupting bubbles in Earth’s upper atmosphere
Researchers have provided some new insights about the powerful geomagnetic storm that flared up last Mother's Day, after a big solar storm hit Earth.
Why do dwarf galaxies line up? ‘Zippers’ and ‘twisters’ in the early universe may solve a galactic mystery
Structures known as "zippers" and "twisters" in the early universe may explain why dwarf galaxies tend to line up with each other, as well as hint at how dark matter operates in the universe.
‘We don’t know how bad it could get’: Are we ready for the worst space weather?
Space weather forecasting doesn't yet command the same resources as Earth weather forecasting, even though the stakes are growing.
Moon mining machine: Interlune unveils helium-3 harvester prototype (photo)
Seattle startup Interlune's newly unveiled machine is designed to churn up 110 tons (100 metric tons) of moon dirt per hour to harvest helium-3, a fuel for future fusion reactors.
James Webb Space Telescope discovers an alien planetary system’s icy edge
The presence of water-ice in the debris disk around a young star could have helped facilitate the growth and development of exoplanets.
Our galaxy’s swirling gases and magnetic lines create cosmic artwork in new simulation
Scientists have developed a new computer model to explore the the interstellar medium, in turn generating stunning images that resemble abstract works of art.
Curious circles on Venus suggest its surface is still changing
A new study reveals fresh signs of geological activity on Venus — clues that the planet's mysterious surface is still changing today.