A math technique could be used to detect forests on extrasolar planets.
A change in the Earth's orbit, many scientists believe, transformed the "Green Sahara" into what is now the largest desert on the planet.
To effectively colonize space, astronauts may have to alter their human biology to fully realize their goal.
Impact craters found on Titan could help scientists determine the age of this Earth-like moon and its potential for life.
A new technique is being developed to detect water in the protoplanetary disks of other solar systems. If successful, it would help in our understanding of how habitable planets form.
The first microbiological survey of Mars analog lakes in Western Australia is offering new evidence of the diverse life that could have once thrived on Mars.