Martian ‘Spiders’ Re-Created in Lab for First Time
Martian ‘spiders’ are small, dark, spider-shaped features up to 1 km (0.6 miles) across. The leading theory is that they form when spring sunshine falls on layers of carbon dioxide…
Martian Gullies Could Have Been Formed by On-And-Off Periods of Liquid Meltwater
Some steep slopes on Mars have gullies with morphologies suggesting that they were formed by a liquid. However, the planet’s current climate is not conducive to the melting of water…
Planetary Scientists Create Two New Forms of Extraterrestrial Ice
University of Washington researcher Baptiste Journaux and colleagues believe the newly-created substances could form at the surface and bottom of deep oceans on Jupiter’s icy moons Europa and Ganymede. This…
Researchers Find Extraterrestrial Noble Gases in Asteroid Ryugu Sample
The sample of material delivered to our planet from the near-Earth asteroid Ryugu contained a mixture of extraterrestrial (helium and neon) and terrestrial atmospheric gases, according to new research led…