Jim Parsons made a surprise appearance on the series finale of "Young Sheldon" but he looked very different from the familiar ...

About two decades ago, in 1998, a supernova observation began to slowly reveal the contours of the enigmatic universe. The ...

Scientists use the James Webb Space Telescope (JWST) to spot more nitrogen than oxygen in GS 3073 and speculate the presence ...

First footage from Stuart Fails to Save the Universe, HBO Max's Big Bang Theory spin-off reveals a bold new look.