“Follow the water” has been the mantra in the search for habitable worlds for a long time. Searching for signs of ancient water was the primary goal of NASA’s Mars Exploration Rover mission. Europa’s suspected subsurface ocean leads some to wonder if it could
This is the first in a series on the history of our understanding of Mars. Is Mars Habitable? At the start of the twentieth century, Percival Lowell was making observations of Mars and writing books claiming that the red planet harbored an intelligent civilization. The last in this series is where I got the title of this
Stephen Hawking, one of the most intelligent humans, wonders why we haven’t yet encountered intelligent aliens.
When it is a brown dwarf.
A new study suggests that a rocky planet orbiting a star 36 light years away - not far at all by cosmic standards - could be habitable. This world is about 3.6 times more massive than the Earth and sits within the “habitable zone” of its