Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

While imperceptible to humans, these tiny delays are significant for experiments that rely on pulsars as ultra-precise cosmic ...

Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

Planets that once lived only in pulp novels and movie concept art are now turning up in real data. Astronomers are not just ...