News tagged with million
Scientists say comet killed off mammoths, saber-toothed tigers
Space & Earth / Earth Sciences
Jan 02, 2009 |
4.5 / 5 (24) |
19
First an explosion as powerful as thousands of megatons of TNT rained meteorites down on North America. Then forest fires broke out across the continent, sending up a thick layer of soot and dust that blocked ...
Decline of carbon-dioxide-gobbling plankton coincided with ancient global cooling
Biology /
Jan 08, 2009 |
4.6 / 5 (12) |
1
(PhysOrg.com) -- The evolutionary history of diatoms -- abundant oceanic plankton that remove billions of tons of carbon dioxide from the air each year -- needs to be rewritten, according to a new Cornell ...
Downadup Worm Hits Over 3.5 Million Computers
Jan 16, 2009 |
3.8 / 5 (4) |
0
(PhysOrg.com) -- Security firm F-Secure has advised that the Downadup worm has spread to more than 3.5 million computers by exploiting a vulnerability Microsoft patched last October. This is achieved by trying ...
Discovery of virus in lemur could shed light on AIDS
Medicine & Health / HIV & AIDS
Dec 01, 2008 |
4.3 / 5 (10) |
0
The genome of a squirrel-sized, saucer-eyed lemur from Madagascar may help scientists understand how HIV-like viruses coevolved with primates, according to new research from the Stanford University School ...
New piece in the jigsaw puzzle of human origins
Other Sciences / Archaeology & Fossils
Jan 15, 2009 |
3.6 / 5 (5) |
2
In an article in today's Nature, Uppsala researcher Martin Brazeau describes the skull and jaws of a fish that lived about 410 million years ago. The study may give important clues to the origin of jawed vertebrates, and th ...
Climate Change Alters Ocean Chemistry
Dec 11, 2008 |
3.2 / 5 (23) |
14
(PhysOrg.com) -- Researchers have discovered that the ocean's chemical makeup is less stable and more greatly affected by climate change than previously believed. The researchers report in the December 12, 2008 issue of Science that d ...
Phoenix Site on Mars May be in Dry Climate Cycle Phase
Space & Earth / Space Exploration
Dec 15, 2008 |
4.4 / 5 (8) |
0
(PhysOrg.com) -- The Martian arctic soil that NASA's Phoenix Mars Lander dug into this year is very cold and very dry. However, when long-term climate cycles make the site warmer, the soil may get moist enough ...
Glacial Erosion Changes Mountain Responses To Plate Tectonics
Space & Earth / Earth Sciences
Nov 15, 2008 |
4.1 / 5 (10) |
0
(PhysOrg.com) -- Intense glacial erosion has not only carved the surface of the highest coastal mountain range on earth, the spectacular St. Elias range in Alaska, but has elicited a structural response from ...
Scientists discover minimum mass for galaxies
Aug 27, 2008 |
4.4 / 5 (27) |
8
(PhysOrg.com) -- By analyzing light from small, faint galaxies that orbit the Milky Way, UC Irvine scientists believe they have discovered the minimum mass for galaxies in the universe – 10 million times the ...
Sedimentary records link Himalayan erosion rates and monsoon intensity through time
Space & Earth / Earth Sciences
Nov 09, 2008 |
4.6 / 5 (8) |
0
Throughout history, the changing fortunes of human societies in Asia have been linked to variations in the precipitation resulting from seasonal monsoons. A new paper published in the British journal Nature Geoscience sugges ...
Sedimentary records link Himalayan erosion rates and monsoon intensity through time
Space & Earth / Earth Sciences
Nov 10, 2008 |
3 / 5 (5) |
0
Throughout history, the changing fortunes of human societies in Asia have been linked to variations in the precipitation resulting from seasonal monsoons.
3.4 million deaths averted through GAVI-funded immunization programs
Oct 29, 2008 |
5 / 5 (2) |
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3.4 million deaths will be averted in the world's poorest countries through immunisation funded by the GAVI Alliance between 2000 and 2008, according to new data released by the World Health Organization (WHO).
Scientist Uses Tracer to Predict Ancient Ocean Circulation
Space & Earth / Earth Sciences
Oct 20, 2008 |
3.6 / 5 (11) |
2
(PhysOrg.com) -- Even though the Cretaceous Period ended more than 65 million years ago, clues remain about how the ocean water circulated at that time. Measuring a chemical tracer in samples of ancient fish scales, bones ...
Extinction by asteroid a rarity: 'Sick Earth' extinctions more likely
Space & Earth / Earth Sciences
Oct 07, 2008 |
3.7 / 5 (18) |
7
In geology as in cancer research, the silver bullet theory always gets the headlines and nearly always turns out to be wrong.
100 million years AD
Space & Earth / Earth Sciences
Sep 26, 2008 |
2.8 / 5 (62) |
58
(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 ...
