Lisa kaltenegger

More than 1,700 stars could have seen Earth in the past 5,000 years.

The problem with C.P. Snow’s famous two-cultures hypothesis.

As recently as the late 80s, finding a planet orbiting another star seemed like the stuff of sci-fi fantasy, about as realistic as a diminutive alien riding a flying bicycle, or a sports car that worked as a time machine. Thanks to many smart astronomers using a new generation of powerful telescopes, we now know […]

Stories about a life spent searching for life among the stars.

Think we might eventually travel to other planets? In a way, we already are.