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Planetary Science & Exoplanets
Worlds near and far—atmospheres, habitability, and planetary formation.
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Venus May Have Had a Moon for Nearly 2 Billion Years—Before It Ate It - AOL
5+ day, 11+ hour ago (483+ words) To find out what might have happened if Venus had a moon of its own, a team of scientists ran simulations of the planet with a hypothetical satellite companion. In almost all scenarios, the Venusian moon’s fate was sealed as…...
Astronomy Picture of the Day - Where Your Elements Came From
2+ hour, 11+ min ago (285+ words) Explanation: The hydrogen in your body and present in every molecule of water came from the Big Bang. There are no other appreciable sources of hydrogen in the universe. The carbon in your body was made by nuclear fusion in…...
Venus ate its moon | UCR News | UC Riverside
3+ hour, 59+ min ago (715+ words) Study explains why Earth’s ‘twin’ lacks rocky satellite Scientists have long speculated why Venus, with a similar size, mass, and structure to Earth, doesn’t have a moon. New UC Riverside research shows it’s because our hungry twin likely swallowed it....
1,000 simulations prove Earth isn't special, shattering cosmic myth | RBC-Ukraine
16+ hour, 15+ min ago (246+ words) Planets suitable for life may form naturally - without a rare coincidence of cosmic circumstances. Planetologists reached this conclusion after conducting over 1,000 computer simulations of terrestrial planet formation, according to SciTech Daily. For the past 30 years, scientists modeled planet formation using…...
Garnet had never been confirmed in a Martian meteorite until researchers examining NWA 8171 at the Royal Ontario Museum found andradite inside a fragment smaller than one millimetre. Some surrounding minerals carry Martian chemistry, but scientists cannot yet tell whether it records an unknown magma, ancient fluid alteration, metamorphism—or debris from an asteroid that struck Mars.
16+ hour, 45+ min ago (766+ words) Andradite in the NWA 8171 Martian breccia is secure, but its tiny host clast could record Martian magma, alteration, metamorphism or material delivered by an impactor. By Deep Field · Edited by Lachlan Brown Published September 14, 2026 · How we edit A rounded grain…...
Early Sun May Have Devoured A Super-Earth, Scientists Say
17+ hour, 4+ min ago (453+ words) Several planetary systems across the galaxy have "super-Earths", which are rocky worlds slightly larger than our own planet. But our cosmic neighbourhood doesn't have a single one, leaving scientists wondering what the reason is. Now, a new study, published in…...
How Do We Know Moonlight Is Just Reflected Sunlight? (Four Clues, One Ancient Trial And A Rock As Dark As Asphalt)
12+ hour, 53+ min ago (1090+ words) Picture this: a pub quiz. The host asks where moonlight comes from. Every hand in the room goes up. The Moon has no light of its own. It reflects the Sun. Everyone learned this at about age seven. Then the…...
Moon has water for future cities, but it could get a bit grubby
18+ hour, 15+ min ago (67+ words) The Times Moon has water for future cities, but it could get a bit grubby Smaller settlements of about 1,000 people to run factories would allow the lunar water reserves to last far longer than large municipalities £1 for 3 months Enjoy unlimited…...
UI researcher uses NASA rover to find rare mineral on Mars
18+ hour, 35+ min ago (533+ words) A University of Iowa geology professor working with NASA helped discover a rare mineral on the Jezero crater on Mars. Valerie Payré, an Assistant Professor in the School of Earth, Environment, and Sustainability, has been working on the Mars 2020 rover…...
Planetarium upgrades bring outer space closer to home and Earth into focus
1+ day, 15+ min ago (484+ words) ST. LOUIS – Some out of this world changes have come to the James S. McDonnell Planetarium at the Saint Louis Science Center. After undergoing a six-month technological upgrade, it is now the most advanced hybrid planetarium in the nation. "In…...