How hard would a human mission to the Red Planet be? Two retired NASA astronauts, Clay Anderson and Steve Swanson, have very different takes.
The discovery of seasonal water flows on the surface of Mars could galvanize both the search for indigenous life as well plans for future human settlements, but don’t pack your bags quite yet.
Once again the world is abuzz about water on Mars -- what's the fuss about this time?
An exhaustive project traces the evolutionary relationships between all of the 2.3 million identified species of plants, animals, microbes and fungi on Earth.
The Royal Photographic Society's annual competition winners create dazzling pieces.
Do-it-yourself bioengineering and garage-based DNA sequencing let anyone alter the human condition.
As astronomical techniques become more advanced, a team of astrophysicists think they will be able to not only detect the signatures of alien life in exoplanetary atmospheres, but also track its relentless spread throughout the galaxy.
If you've ever wondered why putting a foot outside of the covers at night cools you down on a warm, tossy-turny night, Trace has the answer.
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