News tagged with volcanic

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Giant impact near India -- not Mexico -- may have doomed dinosaurs

Giant impact near India -- not Mexico -- may have doomed dinosaurs

Space & Earth / Earth Sciences

created Oct 15, 2009 | popularity 4.8 / 5 (42) | comments 15

A mysterious basin off the coast of India could be the largest, multi-ringed impact crater the world has ever seen. And if a new study is right, it may have been responsible for killing the dinosaurs off 65 ...


African desert rift confirmed as new ocean in the making

Space & Earth / Earth Sciences

created Nov 02, 2009 | popularity 4.9 / 5 (37) | comments 8

(PhysOrg.com) -- In 2005, a gigantic, 35-mile-long rift broke open the desert ground in Ethiopia. At the time, some geologists believed the rift was the beginning of a new ocean as two parts of the African continent pulled ...


Extinction risk to plant biodiversity may occur at lower levels of atmospheric CO2 than previously considered

Space & Earth / Environment

created Jun 29, 2009 | popularity 4.4 / 5 (33) | comments 13

(PhysOrg.com) -- Scientists have traced a sudden collapse in plant biodiversity in ancient Greenland, some 200 million years ago, to a relatively small rise in atmospheric carbon dioxide which caused a rise in the Earth’s ...


Mars

Life on Mars theory boosted by new methane study

Space & Earth / Space Exploration

created Dec 08, 2009 | popularity 4.9 / 5 (30) | comments 11

Scientists have ruled out the possibility that methane is delivered to Mars by meteorites, raising fresh hopes that the gas might be generated by life on the red planet, in research published tomorrow in Earth an ...


Galapagos volcano erupts, could threaten wildlife (AP)

Galapagos volcano erupts, could threaten wildlife

Space & Earth / Earth Sciences

created Apr 12, 2009 | popularity 4.7 / 5 (27) | comments 8

(AP) -- Ecuador officials say a volcano is erupting in the Galapagos Islands and could harm unique wildlife.


Venus

Expanding Spot on Venus Puzzles Astronomers

Space & Earth / Space Exploration

created Aug 04, 2009 | popularity 4.2 / 5 (30) | comments 7

(PhysOrg.com) -- The expanding spot discovered on Venus last month may not have garnered as much attention as the meteor impact with Jupiter, but its cause is certainly more puzzling. ...


Earth

Earth's atmosphere came from outer space, find scientists

Space & Earth / Earth Sciences

created Dec 10, 2009 | popularity 4.2 / 5 (29) | comments 12

(PhysOrg.com) -- The gases which formed the Earth's atmosphere - and probably its oceans - did not come from inside the Earth but from outer space, according to a study by University of Manchester and University ...


Previously Unknown Volcanic Eruption Helped Trigger Cold Decade

Previously Unknown Volcanic Eruption Helped Trigger Cold Decade

Space & Earth / Earth Sciences

created Oct 29, 2009 | popularity 4.3 / 5 (27) | comments 9

(PhysOrg.com) -- A team of chemists from the U.S. and France has found compelling evidence of a previously undocumented large volcanic eruption that occurred exactly 200 years ago, in 1809.


Hawaiian Vog: Where There's Smoke--There is Something Brewing

Hawaiian Vog: Where There's Smoke--There is Something Brewing

Space & Earth / Earth Sciences

created Sep 29, 2008 | popularity 4.7 / 5 (24) | comments 6

The Kilauea Volcano located on the Big Island of Hawaii is currently registering an Orange Alert which means the volcano is exhibiting a heightened or elevated risk of eruption or is erupting with minor or ...


A runaway spurt of global warming 55 million years ago turned Earth into a hothouse, scientists said

Mystery mechanism drove global warming 55 million years ago

Space & Earth / Earth Sciences

created Jul 13, 2009 | popularity 4.3 / 5 (25) | comments 24

A runaway spurt of global warming 55 million years ago turned Earth into a hothouse but how this happened remains worryingly unclear, scientists said on Monday.


Hidden Territory on Mercury Revealed

Hidden Territory on Mercury Revealed

Space & Earth / Space Exploration

created Nov 04, 2009 | popularity 4.8 / 5 (20) | comments 1

The MESSENGER spacecraft's third flyby of the planet Mercury has given scientists, for the first time, an almost complete view of the planet's surface and revealed some dramatic changes in Mercury's comet-like ...


Mars breakthrough: Scientists uncover red planet's hot and steamy secrets

Mars breakthrough: Scientists uncover red planet's hot and steamy secrets

Space & Earth / Space Exploration

created Jul 21, 2009 | popularity 4.5 / 5 (20) | comments 3

(PhysOrg.com) -- An analysis of Martian meteorites has led scientists to believe that Mars was molten for up to 100 million years after it formed, thwarting the evolution of early life on the planet.


Scientists offer new theory for largest known mass extinction

Scientists offer new theory for largest known mass extinction

Space & Earth / Earth Sciences

created Mar 30, 2009 | popularity 4 / 5 (21) | comments 5

The largest mass extinction in the history of the earth could have been triggered off by giant salt lakes, whose emissions of halogenated gases changed the atmospheric composition so dramatically that vegetation ...


Ancient volcano may have caused mass extinction

Space & Earth / Earth Sciences

created May 28, 2009 | popularity 4.3 / 5 (18) | comments 0

A previously unknown giant volcanic eruption that led to global mass extinction 260million years ago has been uncovered by scientists at the University of Leeds.


Supervolcano eruption -- in Sumatra -- deforested India 73,000 years ago

Supervolcano eruption -- in Sumatra -- deforested India 73,000 years ago

Space & Earth / Earth Sciences

created Nov 23, 2009 | popularity 4.5 / 5 (17) | comments 3

A new study provides "incontrovertible evidence" that the volcanic super-eruption of Toba on the island of Sumatra about 73,000 years ago deforested much of central India, some 3,000 miles from the epicenter, ...