Ancient, hydrogen-rich waters discovered deep underground at locations around the world
A team of scientists, led by the University of Toronto's Barbara Sherwood Lollar, has mapped the location of hydrogen-rich waters found trapped kilometres beneath Earth's surface in rock fractures in Canada, ...
Poisonous oceans delayed animal evolution
Animals require oxygen, but oxygenated environments were rare on early Earth. New research from University of Southern Denmark shows that poisonous sulfide existed in the oceans 750 million years ago making ...
New clues in Easter Island hat mystery
(PhysOrg.com) -- A team of archaeologists has come one step closer to unravelling the mystery of how the famous statues dotting the landscape of a tiny Pacific island acquired their distinctive red hats.
Early Earth absorbed more sunlight -- no extreme greenhouse needed to keep water wet
Four billion years ago, our then stripling sun radiated only 70 to 75 percent as much energy as it does today. Other things on Earth being equal, with so little energy reaching the planet's surface, all water ...
Ancient fresh water lake on Mars could have sustained life, Curiosity researchers show
Scientists have found evidence that there was once an ancient lake on Mars that may have been able to support life, in research published today in the journal Science.
New technology for dating ancient rock paintings
A new dating method finally is allowing archaeologists to incorporate rock paintings — some of the most mysterious and personalized remnants of ancient cultures — into the tapestry of evidence used to study life in prehistoric ...
Study finds a barrage of small impacts likely erased much of the Earth's primordial atmosphere
Today's atmosphere likely bears little trace of its primordial self: Geochemical evidence suggests that Earth's atmosphere may have been completely obliterated at least twice since its formation more than ...
Mars rover Opportunity studying new surroundings (Update)
The Mars rover Opportunity is snapping pictures like a tourist since arriving at its latest crater destination, much to the delight of scientists many millions of miles away.
Scientists link ocean acidification to prehistoric mass extinction
(PhysOrg.com) -- New evidence gleaned by analyzing calcium embedded in Chinese limestone suggests that volcanoes, which spewed massive amounts of carbon dioxide into the atmosphere for a million years, caused the biggest ...
Ancient treasure rises from Berlin rubble
When an incendiary bomb hit in World War II, Berlin's Tell Halaf archaeological museum went up in flames and its 3,000-year-old statues were smashed to smithereens.
Meteorite study suggests Mars' ancient atmosphere may be locked in its rocky terrain
Curiosity rover finds conditions once suited for ancient life on Mars
(Phys.org) —An analysis of a rock sample collected by NASA's Curiosity rover shows ancient Mars could have supported living microbes.
Watery science 'jackpot' discovered by Curiosity
The Curiosity rover hit the science "jackpot" and has discovered widespread further evidence of multiple episodes of liquid water flowing over ancient Mars billions of years ago when the planet was warmer ...
Ancient rock under Haiti came from 1,000+ miles away, 1 billion years older than previously thought
(PhysOrg.com) -- Earthquakes and volcanoes are known for their ability to transform Earth's surface, but new research in the Caribbean has found they can also move ancient Earth rock foundations more than 1,000 miles.