First 'directed' SETI search comes up empty
Spitzer sees the light of alien 'super earth'
(Phys.org) -- NASA's Spitzer Space Telescope has detected light emanating from a "super-Earth" planet beyond our solar system for the first time. While the planet is not habitable, the detection is a historic ...
The Drake Equation revisited: An interview with Sara Seager
Planet hunters keep finding distant worlds that bear a resemblance to Earth. Some of the thousands of exoplanet candidates discovered to date have similar sizes or temperatures. Others possess rocky surfaces ...
If we landed on Europa, what would we want to know?
(Phys.org) —Most of what scientists know of Jupiter's moon Europa they have gleaned from a dozen or so close flybys from NASA's Voyager 2 spacecraft in 1979 and NASA's Galileo spacecraft in the mid-to-late ...
Beachcombing for early humans in Africa
(Phys.org) —From the earliest modern humans to the present day, our species has evolved dramatically in both biological and behavioural terms. What forces prompted these momentous changes?
Mars Icebreaker Life mission
Missions to Mars have only scratched its surface. To go deeper, scientists are proposing a spacecraft that can drill into the Red Planet to potentially find signs of life.
Study finds white dwarf stars may hold the key to detecting life on other planets
(Phys.org) —Because it has no source of energy, a dead star—known as a white dwarf—will eventually cool down and fade away. But circumstantial evidence suggests that white dwarfs can still support habitable ...
UNL discovery has implications for finding life on Earth, Mars
(Phys.org) -- Moqui marbles, unusual balls of rock that can be found rolling around the southwestern U.S. sandstone regions, were formed roughly 2 million years ago with the help of microorganisms. This discovery ...
Mars goal: nail the landing
Three weeks from Sunday night, an amiable, whip-smart engineer named Ray Baker will be staring into his computer screen at the Jet Propulsion Laboratory, hopeful and helpless - or, as he puts it, "sweating ...
Famed US alien seeker shifts gaze back to Earth
After decades spent scanning the heavens for signs of life elsewhere in the cosmos, astronomer Jill Tarter is stepping back, and letting a colleague take charge of the quest.
Bringing Mars back to Earth
The search for life should be an essential component of a sample return mission from Mars, according to a recent report examining the science behind such a venture.
Photosynthesis maintains Earth's habitability for life as we know it, and shapes the way we search for habitable worlds around distant stars. Scientists have discovered a microbe that can use low-energy light ...
Microbial oasis discovered beneath the Atacama Desert
Two metres below the surface of the Atacama Desert there is an 'oasis' of microorganisms. Researchers from the Center of Astrobiology (Spain) and the Catholic University of the North in Chile have found it ...
Life possible on 'large parts' of Mars: study
Australian scientists who modelled conditions on Mars to examine how much of the red planet was habitable said that "large regions" could sustain life.