News tagged with earths oceanic
Seeking Life's Shadow
They haven't yet figured out how to draw blood from stones, but a group of French researchers is offering new insight that could change how scientists search for signs of life in Martian rocks.
Space & Earth / Space Exploration
Oct 01, 2009 |
4.7 / 5 (3) |
1
GOCE delivering data for best gravity map ever (w/ Video)
(PhysOrg.com) -- Following the launch and in-orbit testing of the most sophisticated gravity mission ever built, ESA’s GOCE satellite is now in ‘measurement mode’, mapping tiny variations in Earth’s gravity ...
Space & Earth / Space Exploration
Sep 30, 2009 |
4.8 / 5 (10) |
3
Two More Earth's Chandler Wobble Jumps Revealed, Last in 2005
(PhysOrg.com) -- The Chandler Wobble is a small variation in the rotation of the Earth on its axis. It has been known for some time that the phase of the Chandler Wobble jumped by 180 degrees in the 1920s, ...
Sep 02, 2009 |
4.6 / 5 (17) |
5
Water in Earth's mantle may be associated with subduction
A team of scientists from Oregon State University has created the first global three-dimensional map of electrical conductivity in the Earth's mantle and their model suggests that that enhanced conductivity ...
Space & Earth / Earth Sciences
Aug 19, 2009 |
4.3 / 5 (10) |
3
Warming ocean contributes to global warming
The warming of an Arctic current over the last 30 years has triggered the release of methane, a potent greenhouse gas, from methane hydrate stored in the sediment beneath the seabed.
Space & Earth / Earth Sciences
Aug 14, 2009 |
4.4 / 5 (13) |
6
Long debate ended over cause, demise of ice ages -- may also help predict future
Researchers have largely put to rest a long debate on the underlying mechanism that has caused periodic ice ages on Earth for the past 2.5 million years - they are ultimately linked to slight shifts in solar radiation caused ...
Space & Earth / Earth Sciences
Aug 06, 2009 |
4.5 / 5 (24) |
63
Earth's biogeochemical cycles, once in concert, falling out of sync
(PhysOrg.com) -- What do the Gulf of Mexico's "dead zone," global climate change, and acid rain have in common? They're all a result of human impacts to Earth's biology, chemistry and geology, and the natural ...
Aug 04, 2009 |
4 / 5 (7) |
3
Scientists discover Amazon river is 11 million years old
Researchers at the University of Liverpool have discovered that the Amazon river, and its transcontinental drainage, is around 11 million years old and took its present shape about 2.4 million years ago.
Space & Earth / Earth Sciences
Jul 29, 2009 |
4.4 / 5 (7) |
4
'Motion picture' of past warming paves way for snapshots of future climate change
(PhysOrg.com) -- By accurately modeling Earth's last major global warming -- and answering pressing questions about its causes -- scientists led by a University of Wisconsin-Madison climatologist are unraveling ...
Space & Earth / Earth Sciences
Jul 16, 2009 |
3.6 / 5 (10) |
8
Arctic climate under greenhouse conditions in the Late Cretaceous
New evidence for ice-free summers with intermittent winter sea ice in the Arctic Ocean during the Late Cretaceous - a period of greenhouse conditions - gives a glimpse of how the Arctic is likely to respond ...
Space & Earth / Earth Sciences
Jul 09, 2009 |
3.6 / 5 (11) |
1
The Earth's magnetic field remains a charged mystery
400 years of discussion and we’re still not sure what creates the Earth’s magnetic field, and thus the magnetosphere, despite the importance of the latter as the only buffer between us and deadly solar wind ...
Space & Earth / Earth Sciences
Jun 15, 2009 |
4.7 / 5 (26) |
20
The rise of oxygen caused Earth's earliest ice age
(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 ...
Space & Earth / Earth Sciences
May 07, 2009 |
4.6 / 5 (20) |
6
Did a nickel famine trigger the 'Great Oxidation Event'?
(PhysOrg.com) -- The Earth's original atmosphere held very little oxygen. This began to change around 2.4 billion years ago when oxygen levels increased dramatically during what scientists call the "Great ...
Space & Earth / Earth Sciences
Apr 08, 2009 |
4.5 / 5 (21) |
3
Brine-Loving Microbes Reveal Secrets to Success in Chemically Extreme Environments
(PhysOrg.com) -- Scientists have completed the first study of microbes that live within the plumbing of deep-sea mud volcanoes in the Gulf of Mexico, where conditions may resemble those in extraterrestrial ...
Apr 06, 2009 |
4.8 / 5 (4) |
1
Earth Explorer mission GOCE launches
This afternoon, the Gravity field and steady-state Ocean Circulation Explorer (GOCE) satellite developed by the European Space Agency (ESA) was lofted into a near-Sun-synchronous, low Earth orbit by a Rockot ...
Space & Earth / Space Exploration
Mar 17, 2009 |
5 / 5 (3) |
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