One of the most mysterious stars in the galaxy prompted astronomers to check for signals from an intelligent civilization, and now they've shared their findings. Eric Mack has been a CNET contributor ...

When it comes to detecting laser pulses aliens might shoot at Earth to attract our attention, scientists now find they can detect signals as faint as a single photon of light every few tiny fractions ...

Conditions on Titan are looking more and more promising for life. For the first time, the building blocks of cell membranes have been detected in the moon’s atmosphere. On Earth, each cell is a packet ...