New evidence supports 'Snowball Earth' as trigger for early animal evolution
A team of scientists, led by biogeochemists at the University of California, Riverside, has found new evidence linking "Snowball Earth" glacial events to the rise of early animals.
Meteorite holds clues to organic chemistry of the early Earth: study
(PhysOrg.com) -- Carbonaceous chondrites are a type of organic-rich meteorite that contain samples of the materials that took part in the creation of our planets nearly 4.6 billion years ago, including materials ...
Life on Mars hopes fade after methane findings (Update)
Hopes of finding life on Mars suffered a setback after new findings from NASA's Curiosity rover detected only trace amounts of methane gas in the Red Planet's atmosphere, a study said Thursday.
Researchers reveal Earth's habitable lifetime and investigate potential for alien life
Habitable conditions on Earth will be possible for at least another 1.75 billion years – according to astrobiologists at the University of East Anglia.
Did autocells lead to life?
The origin of life on Earth is still a hotly-debated topic. There are many different theories on how life was kick-started, as well as various experiments underway attempting to understand the processes involved. ...
How plants drove animals to the land
10 million years needed to recover from mass extinction
(Phys.org) -- It took some 10 million years for Earth to recover from the greatest mass extinction of all time, latest research has revealed.
Breathing underwater: Evidence of microscopic life in oceanic crust
Although long thought to be devoid of life, the bottom of the deep ocean is now known to harbor entire ecosystems teeming with microbes. Scientists have recently documented that oxygen is disappearing from ...
Mankind's messenger at the final frontier
It looks like a dustbin lid strapped to a cluster of fishing rods. Its computer is so puny it could not even start up your iPhone. And if E.T. wants to listen to the message it brings, he'll need a gramophone ...
Solving a 3.5 billion-year-old mystery: Team determines life-producing phosphorus was carried to Earth by meteorite
(Phys.org) —Scientists may not know for certain whether life exists in outer space, but new research from a team of scientists led by a University of South Florida astrobiologist now shows that one key ...
Discovery improves astronomical 'tape measure' scientists use to calculate acceleration of expansion of universe
(Phys.org)—Light from two massive stars that exploded hundreds of millions of years ago recently reached Earth, and each event was identified as a supernova. A supernova discovered Feb. 6 exploded about 450 million years ...
Cracking how life arose on Earth may help clarify where else it might exist
Does life exist elsewhere or is our planet unique, making us truly alone in the universe? Much of the work carried out by NASA, together with other research agencies around the world, is aimed at trying ...
The basic building blocks of life to be rethought after one discovered to be missing
(Phys.org) -- A gene thought previously to be present in all life on earth has been found to be missing in life near volcanoes.
Photosynthesis: The last link in the chain
For almost 30 years, researchers have sought to identify a particular enzyme that is involved in regulating electron transport during photosynthesis. A team at Ludwig-Maximilians-Universität (LMU) in Munich has now found ...