Carbon dioxide emissions reach record high
Emissions of heat-trapping carbon dioxide reached an all-time high last year, further reducing the chances that the world could avoid a dangerous rise in global average temperature by 2020, according to the International ...
May 29, 2012 |
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Meteorite hunt goes on, needs public's help
(Phys.org) -- A University of California, Davis, geologist is appealing for public help in tracking down pieces of the meteorite that blew up over El Dorado County on April 22.
Space & Earth / Space Exploration
May 28, 2012 |
5 / 5 (3) |
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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.
Space & Earth / Earth Sciences
May 27, 2012 |
4.4 / 5 (8) |
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Organic carbon from Mars, but not biological
(Phys.org) -- Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules ...
Space & Earth / Space Exploration
May 24, 2012 |
4.4 / 5 (5) |
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New bacterium forms intracellular minerals
A new species of photosynthetic bacterium has come to light: it is able to control the formation of minerals (calcium, magnesium, barium and strontium carbonates) within its own organism. Published in Science on Apr ...
May 11, 2012 |
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UK company to build Sun orbiter
The European Space Agency said on Friday it had awarded a 300-million-euro ($400 million) contract to a British technology firm to build a satellite to examine the Sun from closer up than any before it.
Space & Earth / Space Exploration
Apr 27, 2012 |
4.7 / 5 (3) |
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WSU astrobiologist proposes fleet of probes to seek life on Mars
A Washington State University astrobiologist is leading a group of 20 scientists in calling for a mission to Mars with "a strong and comprehensive life detection component." At the heart of their proposal ...
Space & Earth / Space Exploration
Apr 23, 2012 |
5 / 5 (2) |
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One day, many cameras: film shot worldwide debuts
"One Day on Earth" -- touted as the first film with footage from every country taken on the same day -- was to be screened for the first time Sunday around the world, including at the UN.
Apr 23, 2012 |
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Organic compounds found in proto-planetary disks
(PhysOrg.com) -- A new study from scientists in the US has reported that organic compounds could be formed in proto-planetary disks, and could have seeded the development of life in our own and other planetary ...
Mar 30, 2012 |
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Fossil raindrop impressions imply greenhouse gases loaded early Earth's atmosphere
In ancient Earth history, the sun burned as much as 30 percent dimmer than it does now. Theoretically that should have encased the planet in ice, but there is geologic evidence for rivers and ocean sediments ...
Space & Earth / Earth Sciences
Mar 28, 2012 |
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Hazy shades of life on early Earth
A 'see-sawing' atmosphere over 2.5 billion years ago preceded the oxygenation of our planet and the development of complex life on Earth, a new study has shown.
Space & Earth / Earth Sciences
Mar 18, 2012 |
4.7 / 5 (3) |
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Earth siblings can be different: Chemical clues on the formation of planetary systems
An international team of researchers, with the participation of IAC astronomers, has discovered that the chemical structure of Earth-like planets can be very different from the bulk composition of the Earth. ...
Feb 23, 2012 |
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Scientists describe the deepest terrestrial arthropod ever found
Scientists have recently described the deepest terrestrial animal ever found, together with 4 new species for science. These animals are springtails (Arthropoda, Insecta, Collembola), a minute primitive wingless insect with ...
Feb 22, 2012 |
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Explosive evolution need not follow mass extinctions, says study of ancient zooplankton
Following one of Earth's five greatest mass extinctions, tiny marine organisms called graptoloids did not begin to rapidly develop new physical traits until about 2 million years after competing species became ...
Feb 13, 2012 |
5 / 5 (1) |
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High planetary tilt lowers odds for life?
Highly-tilted worlds would have extreme seasons, subjecting life to alternating periods of scorching and subzero temperatures. This could make the development of all but hardiest, simplest creatures a long ...
Space & Earth / Space Exploration
Feb 06, 2012 |
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