Europa's odd ridges may form similarly to those in Greenland. The ridges occur over subsurface pockets of potentially habitable water in the moon's ice shell.
Neptune's temperatures are surprisingly both cooler and warmer than expected, scientists say in a new study using telescopes both on Earth and in space.
NASA's Perseverance rover is heading to an ancient river delta on Mars in record time, thanks to an advanced navigation system using artificial intelligence.
Paul Scott Anderson has had a passion for space exploration that began when he was a child when he watched Carl Sagan’s Cosmos. He studied English, writing, art and computer/publication design in high school and college. He later started his blog The Meridiani Journal in 2005, which was later renamed Planetaria. He also later started the blog Fermi Paradoxica, about the search for life elsewhere in the universe.
While interested in all aspects of space exploration, his primary passion is planetary science and SETI. In 2011, he started writing about space on a freelance basis with Universe Today. He has also written for SpaceFlight Insider and AmericaSpace and has also been published in The Mars Quarterly. He also did some supplementary writing for the iOS app Exoplanet.
He has been writing for EarthSky since 2018, and also assists with proofing and social media.