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5 days ago · Life on Earth began somewhere between 3.7 and 4.5 billion years ago, after meteorites splashed down and leached essential elements into warm little ponds, say scientists.
4 days ago · 1 hour ago. Of the more than 74,000 known meteorites – rocks that fall to Earth from asteroids or planets colliding together – only 385 or so stones came from the planet Mars. It’s not that ...
5 days ago · However, it's one of the best places in the world to hunt for meteorites. That's partly because Antarctica is a desert, and its dry climate limits the degree of weathering the meteorites...
1 day ago · Iron meteorites consist almost entirely of siderophile (iron-loving) elements like nickel and cobalt, which readily dissolve in metallic iron, and chalcophile (sulfur-loving) elements like copper and silver. Most irons contain ~90% iron, 5–10% nickel, 0.4–0.6% cobalt, 0.1–0.5% phosphorus, 0.1–2 wt.% sulfur, and trace amounts of numerous ...
5 days ago · • Meteoritical Bulletin: 113 (2024): Meteorites approved through 21 Jul 2024. • Provisional names: Provisional names (all approved by NomCom). • Earth Impact Database: 18 January 2019. Other tools: Use the Meteorite Name Checking Utility to check multiple names at once, e.g., as an aid for manuscript submission.
4 days ago · Stony meteorites and iron meteorites (those composed largely of iron alloyed with nickel and sulfur) both fall on Earth today, and both types are thought to have been present during the formation of the planetesimals that would accrete to become Earth.
13 hours ago · The Martian meteorites found on Earth give geologists like me hints about the makeup of the red planet and its history of volcanic activity. They allow us to study Mars without sending a spacecraft 140 million miles away. A planet of paradoxes. These Martian meteorites formed from once red-hot magma within Mars.
