"Life can be understood as complexity, and water has a wide range of properties that enable this complexity." Scientists have developed a better model to understand "steam worlds," which are planets ...

Forward-looking: A new generation of space habitat designs is catering to both physical safety and psychological needs. As commercial firms and space agencies pursue new horizons, the next wave of ...

A “selfie” taken by the Perseverance Mars rover as it examines Cheyava Falls, an arrowhead-shaped rock in the center that contains potential biosignatures of past Martian life. Credit: ...