Uranus and Neptune might have deep water oceans beneath their thick atmospheres, with a carbon layer below them. Like oil and water, the two layers never mix.
NASA's Mars rover Curiosity is ready to leave an ancient river channel it's been exploring. Next, it'll go to a geological formation resembling giant spiderwebs.
The DoD just released its new annual report on UAP, often called UFOs. The Pentagon UAP report covers 757 new cases, with 21 of them unexplained so far.
An old UK Skynet satellite should still be over East Africa. But instead it's now over the Pacific Ocean near western South America. Who moved it and why?
A new study of grain samples from asteroid Ryugu shows that an ancient magnetic field helped form asteroids and planets in the early outer solar system.
Scientists think the giant exoplanet J1407b has a massive ring system much larger than Saturn's. A new study suggests the rings may orbit the planet backward.
Where are the giant craters on Venus? Huge concentric rings in the Haasttse-baad Tessera region may be the result of two back-to-back asteroid impacts.
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.