News tagged with hemisphere
Glint of Sunlight Confirms Liquid in Northern Lake District of Titan
Space & Earth / Space Exploration
Dec 17, 2009 |
5 / 5 (14) |
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(PhysOrg.com) -- NASA's Cassini Spacecraft has captured the first flash of sunlight reflected off a lake on Saturn's moon Titan, confirming the presence of liquid on the part of the moon dotted with many large, ...
Hypoxia increases as climate warms
Space & Earth / Earth Sciences
Dec 15, 2009 |
4.3 / 5 (6) |
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A new study of Pacific Ocean sediments off the coast of Chile has found that offshore waters experienced systematic oxygen depletion during the rapid warming of the Antarctic following the last "glacial maximum" period 20,000 ...
Scientists explain puzzling lake asymmetry on Titan
Space & Earth / Space Exploration
Nov 29, 2009 |
4.4 / 5 (14) |
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Researchers at the California Institute of Technology (Caltech) suggest that the eccentricity of Saturn's orbit around the sun may be responsible for the unusually uneven distribution of methane and ethane ...
Cassini closes in on the centuries-old mystery of Saturn's moon Iapetus
Space & Earth / Space Exploration
Dec 10, 2009 |
4.5 / 5 (4) |
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Extensive analyses and modeling of Cassini imaging and heat-mapping data have confirmed and extended previous ideas that migrating ice, triggered by infalling reddish dust that darkens and warms the surface, ...
Cassini Captures Ghostly Dance of Saturn's Northern Lights (w/ Video)
Space & Earth / Space Exploration
Nov 24, 2009 |
4.9 / 5 (10) |
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(PhysOrg.com) -- In the first video showing the auroras above the northern latitudes of Saturn, Cassini has spotted the tallest known "northern lights" in the solar system, flickering in shape and brightness ...
Greenhouse gas carbon dioxide ramps up aspen growth
Dec 04, 2009 |
3.5 / 5 (8) |
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The rising level of atmospheric carbon dioxide may be fueling more than climate change. It could also be making some trees grow like crazy.
Big freeze plunged Europe into ice age in months
Space & Earth / Earth Sciences
Nov 30, 2009 |
4 / 5 (17) |
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In the film, 'The Day After Tomorrow' the world enters the icy grip of a new glacial period within the space of just a few weeks. Now new research shows that this scenario may not be so far from the truth after all.
NASA's AIM Satellite and Models are Unlocking the Secrets of Mysterious 'Night-Shining' Clouds (w/ Video)
Space & Earth / Earth Sciences
Dec 15, 2009 |
4 / 5 (1) |
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(PhysOrg.com) -- NASA's Aeronomy of Ice in the Mesosphere (AIM) satellite has captured five complete polar seasons of noctilucent (NLC) or "night-shining" clouds with an unprecedented horizontal resolution ...
Past regional cold and warm periods linked to natural climate drivers
Space & Earth / Earth Sciences
Nov 26, 2009 |
3.8 / 5 (19) |
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Intervals of regional warmth and cold in the past are linked to the El Niño phenomenon and the so-called "North Atlantic Oscillation" in the Northern hemisphere's jet stream, according to a team of climate scientists. These ...
Professor foresees rising Antarctic snowmelt
Space & Earth / Earth Sciences
Dec 03, 2009 |
3.5 / 5 (2) |
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The 30-year record low in Antarctic snowmelt that occurred during the 2008-09 austral summer was likely due to concurrent strong positive phases for two main climate drivers, ENSO (El Niño - Southern Oscillation) and SAM ...
Ships warned about icebergs headed for New Zealand
Space & Earth / Earth Sciences
Nov 25, 2009 |
not rated yet |
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(AP) -- Ships are on alert and maritime authorities are monitoring the movements of hundreds of menacing icebergs drifting toward New Zealand in the southern Pacific Ocean, officials said.
