The meteorite mainly consists of olivine (Fa24.6), low-Ca pyroxene (Fs20.5), and troilite and Fe-Ni metal, with minor amounts of feldspar (Ab82.4-84.7). Three poorly metamorphosed porphyritic ...

Joe Velaidum's home security camera captured the instant a meteorite smashed against his home's brick walkway. The video is thought to be the first recorded sound of a meteorite's direct impact.

Ultramafic rocks contain iron-rich silicates (e.g., olivine and pyroxene) which react with water at depth in a process called serpentinization. This chemical reaction produces natural hydrogen as a ...

Seawater seeps down into the mantle and heats up. As the seawater hits the minerals, the olivine and pyroxene within the periodite turn into serpentine minerals and produce hydrocarbons.

For example, it looks to be pyroxene-rich, which indicates the rock came from an igneous or possibly metamorphic environment. Other asteroids aren't the same—they tend to be richer in olivine.

Notably, it appears to be rich in pyroxene, suggesting it originated ... which are typically more abundant in olivine. Representative Image Based on that, scientists believe that the asteroid ...

Chinese scientists have developed a revolutionary process to extract water using lunar soil and solar wind-implanted hydrogen ...

For example, it looks to be pyroxene-rich, which indicates the rock came from an igneous or possibly metamorphic environment. Other asteroids aren't the same – they tend to be richer in olivine. Based ...