Scientists thought there was a global ocean on Titan beneath its icy surface. But a new study says the moon's interior may be more icy and slushy instead.
Previous hints of a methane atmosphere on TRAPPIST-1e might not be accurate, a new paper suggests. But the tantalizing exoplanet could still have an atmosphere.
In an experiment on the outside of the International Space Station, a species of moss survived in space for 9 months. And it could have lasted much longer.
Thin, repeating sedimentary layers examined by the Curiosity rover suggest that a big, lost moon of Mars created tides in the ancient lake of Gale crater.
NASA's Perseverance rover has detected lightning on Mars 55 times. It heard the small electrical discharges with its microphone in dust storms and dust devils.
A new study suggests that Theia and Earth were neighbors in the early solar system about 4.5 billion years ago. Then their epic collision destroyed young Theia.
Researchers in China have discovered the 1st water-carved caves on Mars. Known as karst caves, they could provide a protective habitat for possible life.
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.
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