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Earth May Have Lost Some Primoridial Atmosphere to Meteors
4.5 billion years ago, during the Hadean Eon, Earth was bombarded regularly by meteorites. Credit: NASA Enlarge a bit During the Hadean Eon, some 4.5 billion years ago, the world was a much different...
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Did Deadly Gamma-Ray Burst Cause a Mass Extinction on Earth?
In this illustration, a jet is produced by an unusually bright gamma-ray burst. Credit: NASA/Swift/Cruz deWilde Enlarge A gamma-ray burst, the most powerful kind of explosion known in the universe,...
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Rosetta Comet Mission Reveals Clues About the Origin of Earth’s Water
Rosetta took this picture of comet 67P/Churyumov-Gerasimenko from a little more than 12 miles away. Philae’s original landing site is in the upper right corner. ESA/Rosetta/NAVCAM Enlarge One of the...
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OPALS project uses laser beams for Earth-space communications
ENLARGE / This artist's rendition shows the Optical PAyload for Lasercomm Science (OPALS) operating from the International Space Station. OPALS was launched to the station from Cape Canaveral Air...
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Satellites catch Austfonna shedding ice
Rapid ice loss in a remote Arctic ice cap has been detected by the Sentinel-1A and CryoSat satellites. ENLARGE / The CryoSat mission provides data to determine the precise rate of change in the...
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Picasso CubeSat to investigate upper layers of the atmostphere
Credit: BISA Enlarge The PICosatellite for Atmospheric and Space Science Observations (Picasso) CubeSat, designed to investigate the upper layers of Earth's atmosphere. Developed for ESA by the...
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What Asteroid 2004 BL86 and Hawaii Have in Common
ENLARGE / Toes of a pahoehoe flow of basaltic lava advance across a road in Kalapana from the Kilauea Volcano in Hawaii (left). Meanwhile scientists have just determined that the main body of visiting...
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First atomic bomb test may mark the beginning of the Anthropocene
16 milliseconds after the beginning of the Anthropocene: The Trinity nuclear test. Credit: Los Alamos National Laboratory Enlarge Human beings don't merely inhabit the world. They alter it, on an...
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It Looks Like an Asteroid Strike Can’t Cause a Worldwide, Dinosaur-Killing...
Computer generated simulation of an asteroid strike on the Earth. Credit: Don Davis/AFP/Getty Images For decades, scientists have debated the cause of the mass extinction that wiped out the dinosaurs...
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Life Might Thrive 12 Miles Beneath Earth’s Surface
A beach outcrop at Davis Head on Lopez Island in Washington State, where researchers at Yale discovered veins of aragonite containing oddly light carbon isotopes suggestive of life's imprint. Credit:...
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Earth’s surprise inside: Geologists unlock mysteries of the planet’s inner core
A research team from the University of Illinois and colleagues in China found earth's inner core has an inner core of its own, with crystals aligned in a different direction. Credit: Lachina...
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How carbonates behave in the Earth’s interior
A composite image of the Western hemisphere of the Earth. Credit: NASA Enlarge Carbonates are the most important carbon reservoirs on the planet. But what role do they play in the Earth's interior?...
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Antarctica’s retreating ice may re-shape Earth
In this Jan. 22, 2015 photo, a zodiac carrying a team of international scientists heads to Chile's station Bernardo O'Higgins, Antarctica. Water is eating away at the Antarctic ice, melting it where...
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Biggest Asteroid Impact Zone Found Under Australia
Andrew Glikson examines a rock that may have partially melted during an impact event.Credit: D. Seymour The scars of what may have been Earth's largest asteroid crash lie hidden deep below Australia,...
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Looking to space to quantify natural gas leaks on Earth
A composite image of the Western hemisphere of the Earth. Credit: NASA Enlarge The recent increase in natural gas production could provide a bridge to a lower carbon future because it generates half...
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Archivists unearth rare first edition of ‘The Map that Changed the World’
William Smith 1815 map. Credit: The Geological Society Enlarge A rare early copy of William Smith's 1815 Geological Map of England and Wales, previously thought lost, has been uncovered by Geological...
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Gorgeous Satellite Image Reveals Galloping Antarctic Glacier
This satellite image shows that parts of Pine Island Glacier flowed about 325 feet (100 meters) between March 3 and March 15, 2015.Credit: Copernicus data (2015)/ESA/A. Hogg/University of Leeds,...
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Earth Hour comes March 28 at 8:30 p.m.
More than 300 cities in the Green Heart of Europe to join WWF’s event to ‘change climate change’ Vienna/Budapest/Belgrade/Sofia/Bucharest/Kyiv – One of the world’s largest grassroots movement, Earth...
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Earth Hour: emails, Internet, even water add to carbon footprint
People around the world are getting ready to mark Earth Hour by turning out the lights on Saturday.(©All Rights Reserved) Sending a text message or email, eating an apple or watching TV — each of...
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Lights out in Australia as Earth Hour kicks off
Fireworks go off at the Sydney Harbour Bridge and Opera House to signal the start of Earth Hour The Sydney Harbour Bridge and the sails on the nearby Opera House went dark Saturday, as lights on...
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