Joe Velaidum's home security camera captured the instant a meteorite smashed against his home's brick walkway. The video is ...

They're made up of chondrules, or small, spherical grains of silicate minerals such as olivine and pyroxene. Herd believes the meteorite that struck Velaidum's property came from an asteroid belt ...

Of all the meteorites, pallasites are perhaps the most beautiful. They “contain big, beautiful olive-green crystals – a form of magnesium-iron silicate called olivine – embedded entirely in ...