New images captured by NASA's Curiosity rover ... That color has led to them being nicknamed "mother-of-pearl" clouds. While Mars' atmosphere is 95% carbon dioxide, few of its clouds are at ...

Mother-of-pearl is the hard, silvery, internal layer of several kinds of shells, especially oysters, the large varieties of which in the Indian Seas secrete this coat of sufficient thickness to ...

This creates a material called nacre, also known as mother-of-pearl, which encases the irritant and protects the mollusc from it. When pearls are cultured commercially an irritant is manually inserted ...