Scientists have discovered that some supermassive black holes rotate much more rapidly than expected. The discovery came as ...

The music-related monikers were originally pet names, says Sutton, because the spike-laden fossils were reminiscent of hairstyles from the punk rock movement, but the names stuck, leading to the ...

Calcium phosphate looks chalky when new, but can darken to black when ... of the rock that permitted the crystallization of cement (usually calcite) between the grains of the sediment. Note the ...

Fossils typically are flat, researchers said, but the body of the reptile was carved into the rock. While fossils typically ... material on the body as bone black paint, which is produced from ...

They know they can make many times that amount by selling just one prized fossil on the black market. Even if recovered, illegally removed fossils have diminished scientific value, says Xu Xing of ...

Then he found a similar fossil with downward-tipped spines reminiscent of long, side-swept “emo” bangs. He nicknamed that specimen after the emotional alt-rock genre. On Wednesday, Dr. Sutton ...