Astonishingly, we can identify molecules present in the atmospheres of exoplanets.

Rings of comets have been discovered around 74 alien star systems, revealing not only the existence of trillions of icy ...

From a distance, it looks like a serene blue twin of our own world, a dot that could almost pass for Earth in a telescope ...

Turn your phone into a portable planetarium, map the night sky and discover the best place and time to observe February's solar eclipse, with the best stargazing apps. When you purchase through links ...