NEW YORK (Reuters) -A 54-pound (24.5-kg) Martian meteorite that is the largest known piece of Mars found on Earth has sold for $5.3 million at Sotheby's, setting a new auction record for a meteorite.

“There’s really no substitute for ‘ground truth,’ and the Martian meteorites represent the only known samples from that planet.” In those words, geochemist Ralph Harvey encapsulates the scientific ...

# NASA data for ALH 77257 Weathering: Ae Fracturing: B Fa: 14 mol % Fs: 12 mol % ²⁶Al: 38.7 ± 1.5 dpm/kg Approximately one-half of the sample's surface is rounded and mostly covered with fusion crust ...

Chennaoui’s own museum, The Attarik Foundation, holds a 7 gram fragment worth $7,000. The high sale prices of the so-called Tissint Martian pieces reflected their freshness, rarity and origin – Mars – ...