A radio telescope deep in the Western Australian desert has helped scientists look back nearly 13 billion years into cosmic ...

The universe is a slow-changing place. While it's mostly true that the heavens and the deep-sky objects in it will look largely the same across an average human lifetime, there are dramatic examples ...

Are we alone? It's one of the most basic questions of human existence. People have been trying to answer it for millennia in ...

Astronomers have discovered a surprisingly "pristine" red giant with the lowest concentration of heavy elements ever seen in ...

Plate tectonics may have played a larger role in the evolution of life on Earth than we previously ... perhaps indicating the start of subduction. Though there is no single agreed-upon date, the ...