The natural history-themed sale on Wednesday features a 54-pound hunk of Mars estimated at $2 million to $4 million.

The ratio of lead and potassium-argon isotopes in this block of mineral components including olivine, pyroxene, feldspar and glass gives it an age of roughly 4.57 billion years, which makes it ...

The most massive chunk of Mars ever found on Earth could sell for up to US$4 million in a Sotheby's auction later this month.

Both meteorites contain olivine and pyroxene, along with smaller amounts of albitic plagioclase and oldhamite. According to the research team, this matches predictions about Mercury’s surface makeup.

Both of the meteorites contain olivine and pyroxene, as well as minor albitic plagioclase and oldhamite, which the team explains is consistent with predictions for the composition of Mercury's ...

Both meteorites contain olivine and pyroxene, minor albitic plagioclase and oldhamite. Such features are consistent with predictions for Mercury's surface composition. Additionally, their oxygen ...

Both meteorites contain olivine and pyroxene, minor albitic plagioclase and oldhamite. Such features are consistent with predictions for Mercury’s surface composition.

NASA's Perseverance rover found a skull-shaped rock on Mars in Jezero Crater. Scientists call it Skull Hill. It is likely a 'float rock' moved by natural forces. Analysis suggests it is an igneous ...

On Earth and Mars, iron and magnesium are some of the main contributors to igneous rocks, which are formed from the cooling of magma or lava. This rock contains dark-colored minerals such as olivine, ...