Ancient Mars May Have Been More Habitable Than It Looks Today Modern Mars is cold, dry, and exposed to harsh radiation. Its ...

Researchers have developed the Smaller Than Earth Habitability Model (STEHM) to assess which planets can maintain life-supporting atmospheres, focusing on size and atmospheric dynamics. Subscribe to ...

For decades, planetary scientists could not get a direct look at a cold, mature giant planet beyond our solar system. Instruments were not powerful enough to isolate the faint infrared glow of a world ...