How did the universe begin? June 24, 2008 | User rating: 4.2 / 5 after 142 vote(s)
| User comments: 136
One of the most interesting questions considered by astrophysicists deals with the start of our universe. Indeed, there is a great deal of speculation on the subject, with different theories about how the universe began, ... | |
 Arctic ice on the verge of another all-time low August 28, 2008 | User rating: 3.6 / 5 after 54 vote(s)
| User comments: 123
Following last summer's record minimum ice cover in the Arctic, current observations from ESA's Envisat satellite suggest that the extent of polar sea-ice may again shrink to a level very close to that of ... | |
 Arctic sea ice hits second-lowest extent, likely lowest volume October 02, 2008 | User rating: 2.8 / 5 after 30 vote(s)
| User comments: 75
Arctic sea ice extent during the 2008 melt season dropped to the second-lowest level since satellite measurements began in 1979, reaching the lowest point in its annual cycle of melt and growth on Sept. 14, ... | |
Global warming greatest in past decade September 01, 2008 | User rating: 3 / 5 after 78 vote(s)
| User comments: 73
Researchers confirm that surface temperatures in the Northern Hemisphere were warmer over the last 10 years than any time during the last 1300 years, and, if the climate scientists include the somewhat controversial data ... | |
 Satellite images show continued breakup of 2 of Greenland's largest glaciers August 21, 2008 | User rating: 3.4 / 5 after 23 vote(s)
| User comments: 69
Researchers monitoring daily satellite images here of Greenland's glaciers have discovered break-ups at two of the largest glaciers in the last month. They expect that part of the Northern hemisphere's longest ... | |
 'Calm before storm' may foreshadow climatic tipping point September 17, 2008 | User rating: 3.6 / 5 after 132 vote(s)
| User comments: 62
(PhysOrg.com) -- Abrupt climate change has occurred on earth many times over the past millions of years. Climate scientists hypothesize that these sharp transitions may be caused when the earth system reaches ... | |
100 million years AD September 26, 2008 | User rating: 2.8 / 5 after 60 vote(s)
| User comments: 57
(PhysOrg.com) -- Jan Zalasiewicz, a lecturer in geology at the University of Leicester, has published a new study looking at the lasting impression made by mankind -100 million years hence. He takes the perspective of alien ... | |
Researchers document world's mammals in crisis October 06, 2008 | User rating: 3.7 / 5 after 19 vote(s)
| User comments: 54
From majestic African elephants to tiny and often unappreciated rodents, mammals on Earth are in a state of crisis. One in four mammal species on Earth is being pushed to extinction, according to the Global Mammal Assessment, ... | |
White roofs, streets could curb global warming September 17, 2008 | User rating: 4.2 / 5 after 102 vote(s)
| User comments: 45
The idea of painting our roofs and roads white to offset global warming is not new, but a recent study has calculated just how significantly white surfaces could impact greenhouse gas emissions. Last week, researchers at ... | |
 Scientists confirm that parts of earliest genetic material may have come from the stars June 13, 2008 | User rating: 4.6 / 5 after 92 vote(s)
| User comments: 41
Scientists have confirmed for the first time that an important component of early genetic material which has been found in meteorite fragments is extraterrestrial in origin, in a paper published on 15 June ... | |
 A clash of clusters provides another clue to dark matter August 27, 2008 | User rating: 4.5 / 5 after 26 vote(s)
| User comments: 39
New Hubble and Chandra observations of the cluster known as MACSJ0025.4-1222 indicate that a titanic collision has separated dark from ordinary matter. This provides independent confirmation of a similar effect ... | |
Could hadron collider devour the Earth? June 28, 2008 | User rating: 3.9 / 5 after 50 vote(s)
| User comments: 38
Particle colliders creating black holes that could devour the Earth. Sounds like a great Hollywood script. But, according to UC Santa Barbara Physics Professor Steve Giddings, it's pure fiction. | |
 Eat less meat to fight climate change: UN expert September 07, 2008 | User rating: 3.3 / 5 after 30 vote(s)
| User comments: 32
People should cut their consumption of meat to help combat climate change, a top United Nations expert told a British Sunday newspaper. | |
 Meteorite experiment deals blow to 'bugs from space' theory September 25, 2008 | User rating: 3.8 / 5 after 38 vote(s)
| User comments: 31
A novel experiment has dealt a setback to a theory that life on Earth was kickstarted by bacteria that hitched a ride on space rocks. | |
New computer simulations show how special the solar system is August 07, 2008 | User rating: 4 / 5 after 45 vote(s)
| User comments: 30
Prevailing theoretical models attempting to explain the formation of the solar system have assumed it to be average in every way. Now a new study by Northwestern University astronomers, using recent data from the 300 exoplanets ... | |
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