NASA scientists say they have confirmed a theory about how Martian 'spiders' form in the southern polar regions: erupting bursts of carbon dioxide gas.
Mars' polar caps are generally similar, but they also differ in some some ways. A new study shows how the differing sublimation of CO2 ice plays a role.
Scientists in China, studying samples brought back by the Chang’e-5 mission, say that the moon's volcanoes were active as recently as 120 million years ago.
Scientists in Australia have discovered a huge donut-shaped region in Earth's core. The finding provides new clues about the dynamics of Earth's magnetic field.
Astronomers with the Event Horizon Telescope Collaboration have developed a new technique that will produce direct black hole images with 50% better resolution.
A new SETI search for extraterrestrial intelligence, by astronomers in Australia, is the 1st of its kind. It looked for technosignatures in distant galaxies.
Scientists have developed a new technique - using the travel time of sound - to measure the speeds of winds on Mars with greater accuracy than ever before.
An international team of scientists has determined that Chicxulub dinosaur-killing asteroid was carbonaceous and originated from the deep outer solar system.
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.