Space sunshade might be feasible in global warming emergency
Space & Earth / Space Exploration
Nov 03, 2006 |
3.7 / 5 (75) |
0
The possibility that global warming will trigger abrupt climate change is something people might not want to think about. But University of Arizona astronomer Roger Angel thinks about it.
Strong Evidence Points to Earth's Proximity to Sun as Ice Age Trigger
Space & Earth / Earth Sciences
Aug 27, 2007 |
4.6 / 5 (60) |
0
When do ice ages begin? In June, of course. Analysis of Antarctic ice cores led by Kenji Kawamura, a visiting scientist at Scripps Institution of Oceanography, UC San Diego, shows that the last four great ...
Shrinking Bylot Island glaciers tell story of climate change
Space & Earth / Earth Sciences
Aug 31, 2009 |
4.7 / 5 (59) |
8
The U.S. Geological Survey has released the results of a long-term study of key glaciers in western North America, reporting this month that glacial shrinkage is rapid and accelerating and a result of climate ...
First fuzzy photos of planets outside solar system
Nov 13, 2008 |
4.8 / 5 (58) |
4
(PhysOrg.com) -- Astronomers using the Gemini North telescope and W.M. Keck Observatory on Hawaii's Mauna Kea have obtained the first-ever direct images identifying a multi-planet system around a normal star. ...
Ice-free Arctic Ocean possible in 30 years, not 90 as previously estimated
Space & Earth / Earth Sciences
Apr 02, 2009 |
4.4 / 5 (62) |
20
(PhysOrg.com) -- A nearly ice-free Arctic Ocean in the summer may happen three times sooner than scientists have estimated. New research says the Arctic might lose most of its ice cover in summer in as few ...
Scientists Predict Big Solar Cycle
Dec 22, 2006 |
4.4 / 5 (62) |
0
Evidence is mounting: the next solar cycle is going to be a big one. Solar cycle 24, due to peak in 2010 or 2011 "looks like its going to be one of the most intense cycles since record-keeping began almost ...
Ice Sheets Can Retreat 'In a Geologic Instant,' Study of Prehistoric Glacier Shows
Space & Earth / Earth Sciences
Jun 21, 2009 |
4.5 / 5 (61) |
20
(PhysOrg.com) -- Modern glaciers, such as those making up the Greenland and Antarctic ice sheets, are capable of undergoing periods of rapid shrinkage or retreat, according to new findings by paleoclimatologists ...
Arctic at warmest levels in 2,000 years or more
Space & Earth / Earth Sciences
Sep 03, 2009 |
4.3 / 5 (64) |
25
Arctic temperatures in the 1990s reached their warmest level of any decade in at least 2,000 years, new research indicates. The study, which incorporates geologic records and computer simulations, provides ...
Supercomputer study shows Milky Way's halo of dark matter in unprecedented detail
Nov 20, 2006 |
4.5 / 5 (61) |
0
Researchers at the University of California, Santa Cruz, have used NASA's most powerful supercomputer to run the largest simulation to date of the formation and evolution of the dark matter halo that envelopes ...
Sandtrapped Rover Makes a Big Discovery
Space & Earth / Space Exploration
Dec 03, 2009 |
4.8 / 5 (56) |
11
Homer's Iliad tells the story of Troy, a city besieged by the Greeks in the Trojan War. Today, a lone robot sits besieged in the sands of Troy while engineers and scientists plot its escape.
Solstice Moon Illusion
Space & Earth / Space Exploration
Jun 17, 2008 |
4.5 / 5 (60) |
1
Sometimes you just can't believe your eyes. This week is one of those times. On Wednesday night, June 18th, step outside at sunset and look around. You'll see a giant form rising in the east. At first glance ...
Rumblings on the moon could be problematic for lunar base
Apr 07, 2006 |
4.6 / 5 (59) |
0
As NASA envisions it, astronauts will return to the moon within the next decade or so. Unlike in the earlier, quick, Apollo visits, these astronauts will build a permanent base and prepare for an historic ...
Sharpest ever global Earth map
May 05, 2005 |
2.6 / 5 (105) |
1
The most detailed portrait ever of the Earth's land surface is being created with ESA's Envisat environmental satellite. The GLOBCOVER project aims at producing a global land cover map to a resolution three ...
House Democrats unveil sweeping plan to reshape energy in America
Apr 01, 2009 |
4.3 / 5 (62) |
21
Democrats in the House of Representatives on Tuesday announced a sweeping plan to change how the nation produces and uses energy in order to reduce the risk of dangerous climate change.
From beneath Antarctica's Ross Sea, scientists retrieve pristine record of the continent's climate cycles
Space & Earth / Earth Sciences
Apr 16, 2007 |
4.7 / 5 (57) |
0
Frequent climate fluctuations on the world’s southernmost continent have been so extreme over the past 5 million years that Antarctica’s Ross Ice Shelf, a floating slab of ice the size of France, oscillated in size dramatically, ...
