7,733 results
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The iron record of Earth’s oxygen
Scientists are decoding the geological secrets of banded iron formations.
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Science Future for September 27, 2008
October 3 Grid Fest at CERN in Geneva marks LHC’s computing grid going live. Visit lcg.web.cern.ch/LCG/lhcgridfest October 12–18 Earth Science Week 2008, sponsored by the American Geological Institute, celebrates “No Child Left Inside.” Visit www.earthsciweek.org October 20–21 Orionids meteor shower expected to peak. Visit www.imo.net/calendar/2008
- Earth
Nickel down, oxygen up
Researchers point to the early ocean's concentration of nickel as the possible start for events that allowed Earth's atmosphere to accumulate oxygen.
- Earth
Earthquake history recorded in stalagmites
Where stalagmites start and stop in caves could offer more precise clues about when major earthquakes have hit (and could again hit) the Midwest.
- Earth
Continental clash cooled the climate
The collision between India and Asia set off events that caused long-term cooling in Earth’s climate, new research suggests.
- Paleontology
Dino feathers may have had earlier origin than thought
Researchers report that newly described dinosaur fossils suggest an ancient origin of feathers.
- Space
MESSENGER’s second pass
New studies detail the latest findings about Mercury from the MESSENGER spacecraft, including the discovery of the second largest crater known on the planet and a surprisingly strong interaction between the sun’s magnetic field and that of the planet.
- Earth
Sea-level history off the ice
For the first time, researchers have assembled a comprehensive record of how sea level varied between 542 million and 251 million years ago, more than doubling previous timelines for such fluctuations.
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- Earth
When trees grew in Antarctica
Fossils of trees that grew in Antarctica millions of years ago suggest a growth pattern much different than modern trees.
- Planetary Science
New angles on Mercury
The NASA MESSENGER spacecraft completed its second flyby of Mercury, yielding crisp new images of a large swath of the planet not seen before.
- Space
Brines on Mars
Unusually high concentration of perchlorate salts found in Martian soil suggests that the Red Planet may harbor shallow, extremely briny oceans just below its surface. The existence of these brines may explain a host of puzzles on Mars.
