News tagged with silicate rocks
First plants caused ice ages: research
New research reveals how the arrival of the first plants 470 million years ago triggered a series of ice ages. Led by the Universities of Exeter and Oxford, the study is published today (February 1, 2012) in Nature Geoscience.
Space & Earth / Earth Sciences
Feb 01, 2012 |
4.7 / 5 (12) |
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Exposed rocks point to water on ancient Mars
A new discovery of hydrothermally altered carbonate-bearing rocks on Mars points toward habitable environments deep in the martian crust, a Planetary Science Institute researcher said.
Space & Earth / Space Exploration
Oct 14, 2010 |
4.9 / 5 (9) |
1
Cooking Up Water From the Moon? NASA Studies Water Extraction With Microwaves
(PhysOrg.com) -- Intrigued by NASA lunar missions in the 1990s which suggested the existence of ice within craters at the moon's poles, NASA scientist Dr. Edwin Ethridge and his team started cooking up a way ...
Space & Earth / Space Exploration
Oct 19, 2009 |
5 / 5 (2) |
0
Plants Save the Earth from an Icy Doom (w/ Podcast)
(PhysOrg.com) -- Fifty million years ago, the North and South Poles were ice-free and crocodiles roamed the Arctic. Since then, a long-term decrease in the amount of CO2 in the atmosphere has cooled the Earth. ...
Space & Earth / Earth Sciences
Jul 01, 2009 |
3.8 / 5 (9) |
5
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Venus Express unearths new clues to the planet's geological history
(Phys.org) -- ESA's Venus Express has been used to study the geology in a region near Venus' equator. Using near-infrared observations collected by the Venus Monitoring Camera (VMC), scientists have found ...
Space & Earth / Space Exploration
May 23, 2012 |
5 / 5 (4) |
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'Faster-ticking clock' indicates early solar system may have evolved faster than we think
Our solar system is four and a half billion years old, but its formation may have occurred over a shorter period of time than we previously thought, says an international team of researchers from the Hebrew University of ...
Space & Earth / Space Exploration
May 01, 2012 |
4.4 / 5 (15) |
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Villain in disguise: Jupiter's role in impacts on Earth
Jupiter is often credited for shielding Earth from catastrophic asteroid and comet impacts. But new simulations of the influence of gas giant planets in solar systems casts doubt on Jupiter's reputation as ...
Space & Earth / Space Exploration
Mar 13, 2012 |
3.3 / 5 (3) |
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How heavy and light isotopes separate in magma
In the crash-car derby between heavy and light isotopes vying for the coolest spots as magma turns to solid rock, weightier isotopes have an edge, research led by Case Western Reserve University shows.
Feb 24, 2012 |
3.3 / 5 (3) |
2
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Building blocks of early Earth survived collision that created moon
Unexpected new findings by a University of Maryland team of geochemists show that some portions of the Earth's mantle (the rocky layer between Earth's metallic core and crust) formed when the planet was much smaller than it is now, an ...
Space & Earth / Earth Sciences
Feb 18, 2012 |
5 / 5 (5) |
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Global extinction: Gradual doom is just as bad as abrupt
A painstakingly detailed investigation shows that mass extinctions need not be sudden events. The deadliest mass extinction of all took a long time to kill 90 percent of Earth's marine life, and it killed ...
Space & Earth / Earth Sciences
Feb 03, 2012 |
4.2 / 5 (20) |
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Elements of ExoPlanets
By looking at the wavelengths of light from nearby stars, researchers have determined the abundance of certain elements for more than a hundred stars. Trace elements in such stars may influence their habitable ...
Space & Earth / Space Exploration
Feb 02, 2012 |
4.9 / 5 (8) |
0
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New research explains how diamond rich kimberlite makes its way to Earth's surface
(PhysOrg.com) -- Kimberlite, a type of magma that is normally found deep within the Earth’s crust is known to somehow make its way to the surface at times, and when it does, it quite often has diamonds ...
Space & Earth / Earth Sciences
Jan 19, 2012 |
4.7 / 5 (6) |
9
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LRO lets you stand on the rim of Aristarchus crater
Have you ever you looked up at the bright, cavernous Aristarchus Crater on the Moon through a telescope or binoculars and wondered what it would be like to stand on the rim and peer inside? Spectacular new ...
Space & Earth / Space Exploration
Dec 30, 2011 |
5 / 5 (6) |
3
Why silicon-based aliens would rather eat our cities than us: Thoughts on non-carbon astrobiology
Conventional wisdom has long had it that carbon-based life, so common here on earth, must surely be abundant elsewhere; both in our galaxy and the universe as a whole.
Space & Earth / Space Exploration
Dec 21, 2011 |
5 / 5 (15) |
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