We only have one example of a planet with life: Earth. But within the next generation, it should become possible to detect signs of life on planets orbiting distant stars. If we find alien life, new questions will arise. ...
Aug 27, 2015 in Astronomy
Imagine a world without liquid water—just solid ice in all directions. It would certainly not be a place that most life forms would like to live.
Aug 03, 2015 in Earth Sciences