(PhysOrg.com) -- Scientists from all over the world are taking a second, more expansive, look at the car-sized asteroid that exploded over Sudan's Nubian Desert in 2008. Initial research was focused on classifying the meteorite ...
Space Exploration
Dec 15, 2010
5
0
By swapping out one specific hydrogen atom for an isotope twice as heavy, researchers have increased the shelf life and detection ability of fluorescent probes that are essential to studying a variety of inflammatory diseases, ...
Materials Science
Jul 20, 2010
1
0
(PhysOrg.com) -- The scalding-hot sea that supposedly covered the early Earth may in fact never have existed, according to a new study by Stanford University researchers who analyzed isotope ratios in 3.4 billion-year-old ...
Earth Sciences
Nov 11, 2009
1
0
(PhysOrg.com) -- Ancestors of tapirs and ancient cousins of rhinos living above the Arctic Circle 53 million years ago endured six months of darkness each year in a far milder climate than today that featured lush, swampy ...
Earth Sciences
Jun 1, 2009
74
0
(PhysOrg.com) -- Geologists may have uncovered the answer to an age-old question - an ice-age-old question, that is. It appears that Earth's earliest ice ages may have been due to the rise of oxygen in Earth's atmosphere, ...
Earth Sciences
May 7, 2009
6
2
Asteroids are hunks of rock that orbit in the outer reaches of space, and scientists have generally assumed that their small size limited the types of rock that could form in their crusts. But two newly discovered meteorites ...
Earth Sciences
Jan 7, 2009
2
0
About 183 million years ago, volcanic activity in modern South Africa unleashed an estimated 20,500 gigatons of carbon dioxide (CO2) into the ocean–atmosphere system over a period of 300 to 500 thousand years. Known as ...
Earth Sciences
Jun 25, 2024
1
158
New Curtin-led research has found evidence that fresh water on Earth, which is essential for life, appeared about 4 billion years ago—5 hundred million years earlier than previously thought.
Earth Sciences
Jun 3, 2024
0
39
A pair of planetary scientists, one with the University of Milan, the other with Columbia University, has found evidence that the exodus of hominins out of Africa approximately 1 million years ago may have been driven by ...
Vittrup Man was born along the Scandinavian coast before moving to Denmark, where he was later sacrificed, according to a study published in PLOS ONE by Anders Fischer of the University of Gothenburg, Sweden and colleagues.
Archaeology
Feb 14, 2024
2
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