and at least a quarter are Earth-size planets in their star’s so-called habitable zone, where conditions are neither too hot nor too cold for life. With a minimum of 100 billion stars in the ...

The planet 51 Pegasi b is a long way from Prior Lake, 48 light years (several billion miles) to be exact. It orbits a fifth magnitude star, similar to our Sun, in the constellation Pegasus. It was ...

With HWO, SETI could detect these emissions from as far as 5.7 light-years away, just beyond our closest stellar neighbor, Proxima Centauri. Finally, as you get closer and closer to Earth, you would ...

New research suggests it is unlikely NASA’s plans to obtain samples from Enceladus' liquid oceans will provide clear evidence ...