Is it worth being afraid of asteroids?In the history of the planet, catastrophes associated with boulders flying from space ...

The labyrinthine formation appears to curve, forming part of a giant circle 53 miles (86 km) in diameter, leading scientists to suspect it may be part of a much larger impact crater from a meteor ...

Leading the November 20 auction is a 275-pound (125 kg) Brenham meteorite, a rare siderite pallasite discovered in Kansas in 2005. This specimen, embedded with olivine crystals, offers a unique ...

Moon rocks, collected during the Apollo Moon landing, and meteorites that ... The answer may lie in the crystals. Kepler 102 is Earth-like, dominated by olivine minerals, whereas Kepler 407 ...

Moon rocks, collected during the Apollo Moon landing, and meteorites ... a crystal that gets its rich, deep red color from iron. Meanwhile, Earth's mantle is loaded with olivine, a green mineral ...

Instruments detected lots of olivine crystals engulfed and surrounded by the mineral pyroxene. Geologists describe what Perseverance saw as a cumulate texture, said Kelsey Moore from the ...

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Researchers found tiny pores in the meteorite Acfer 094 that are thought to be fossilized remnants of ice crystals. The 4.6 billion-year-old space rock has been extensively studied since its discovery ...

olivine, said Steve Arnold, the meteorite hunter who found it. “If you see pictures of pallasites,” Arnold said Wednesday from his home in Arkansas, “often they’re cut thin and the peridot ...