NASA's Perseverance Mars rover spots a scattering of bizarre bright white pebbles of a mysterious composition and origin.

During its recent exploration of the crater rim, Perseverance diverted to explore a strange, scattered field of bright white ...

consist of a mineral called pyroxene. These are volcanic rocks that give the Moon its unique grey look, and sometimes you can even get a glimpse of green from rare minerals like olivine.

Analysis - The sight of a fireball streaking across the sky brings wonder and excitement to children and adults alike. It's a reminder that Earth is part of a much larger and incredibly dynamic system ...

L and LL – based on the iron content of the meteorites and the distribution of iron and magnesium in the major minerals olivine and pyroxene. These silicate minerals are the mineral building ...

They are then divided into three broad classes—H, L and LL—based on the iron content of the meteorites and the distribution of iron and magnesium in the major minerals olivine and pyroxene.

Most are known as “ordinary chondrites”. They are then divided into three broad classes – H, L and LL – based on the iron content of the meteorites and the distribution of iron and magnesium in the ...

The left frame has conventional colours. The right frame has been colourised to illustrate the preponderance of olivine (red) and two types of pyroxene (green and blue) The scientists' immediate ...