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Why Huge Bands of Iron Formed Billions of Years Ago on Earth’s Surface
Because these deposits carry information about early Earth’s surface conditions and climate changes, as well as provide much of modern industry’s iron resources, interested researchers have cast a wid...
Earth Sciences |
Read moreNASA's Great Observatories Celebrate International Year of Astronomy
In celebration of this International Year of Astronomy, NASA is releasing images of the galactic center region as seen by its Great Observatories to more than 150 planetariums, museums, nature centers...
Physics and Astronomy | Read moreNew Celestial Map Gives Directions for GPS
The system works well, and millions rely on it every day, but what tells the GPS satellites where they are in the first place? "For GPS to work, the orbital position, or ephemeris, of the...
Information Technology | Read morePhysicist makes new high-res panorama of Milky Way
Axel Mellinger, a professor at Central Michigan University, describes the process of making the panorama in the November issue of Publications of the Astronomical Society of the Pacific. An interactiv...
Physics and Astronomy | Read moreVolcanoes Played Pivotal Role in Ancient Ice Age, Mass Extinction
Perhaps ironically, these volcanoes first caused global warming -- by releasing massive amounts of carbon dioxide into the atmosphere.When they stopped erupting, Earth’s climate was thrown off...
Earth Sciences | Read moreCassini Helps Redraw Shape of Solar System
Images from one of the Magnetospheric Imaging Instrument’s sensors, the Ion and Neutral Camera (MIMI/INCA), on NASA’s Cassini spacecraft suggest that the heliosphere may not have the comet-like shape ...
Physics and Astronomy | Read moreSatellite reveals surprising cosmic 'weather' at edge of solar system
"Nature is full of surprises, and IBEX has been lucky to discover one of those surprises," said Priscilla Frisch, a senior scientist in astronomy & astrophysics at the University of Chicago....
Physics and Astronomy | Read moreGiant Impact Near India--Not Mexico--May Have Doomed Dinosaurs
Sankar Chatterjee of Texas Tech University and a team of researchers took a close look at the massive Shiva basin, a submerged depression west of India that is intensely mined for its oil and gas reso...
Earth Sciences | Read morePeering under the ice of a collapsing polar coast
Starting this month, a giant NASA DC-8 aircraft loaded with geophysical instruments and scientists will buzz at low level over the coasts of West Antarctica, where ice sheets are collapsing at a pace ...
Earth Sciences | Read moreNew ancient fungus finding suggests world's forests were wiped out in global catastrophe
The researchers behind the study, from Imperial College London and other universities in the UK, USA and The Netherlands, believe that the organisms were able to thrive during this period because the ...
Earth Sciences | Read moreSimulation suggests rocky exoplanet has bizarre atmosphere
So accustomed are we to the sunshine, rain, fog and snow of our home planet that we find it next to impossible to imagine a different atmosphere and other forms of precipitation. To be sure, D...
Physics and Astronomy | Read moreTwin Keck Telescopes Probe Dual Dust Disks
The centerpiece of the study is the Keck Interferometer Nuller (KIN), a device that combines light captured by both of the giant telescopes in a way that allows researchers to study faint objects othe...
Physics and Astronomy | Read moreFrog fungus hammering biodiversity of communities
It may also be true of the frogs of Central America, where the pattern of extinctions emerges clearly only at a certain spatial scale. Everyone knows that frogs are in trouble and that some sp...
Ecology, The Environment and Conservation | Read moreVernon Lecture Series Delves Into Mysteries of the Cosmos
Nationally known speakers will transport audiences on a quest to find new planets on Sept. 26, journey back in time to see how modern astronomy was really invented on Oct. 17, and explore the prospect...
Physics and Astronomy | Read moreFirst solid evidence for a rocky exoplanet
The longest set of HARPS measurements ever made has firmly established the nature of the smallest and fastest-orbiting exoplanet known, CoRoT-7b, revealing its mass as five times that of Earth's....
Physics and Astronomy | Read more
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