7,844 results
7,844 results for: Geology
- Life
Everyday tree deaths have doubled
In past 50 years, apparently healthy forests have started losing trees faster, possibly because of climate change.
- Earth
Animal ancestors may have survived ‘snowball Earth’
Chemical fossils in Precambrian sedimentary rock push back the first date for animal life.
- Space
Whiff of Martian methane offers lively possibilities
The definitive discovery in Mars’ atmosphere of methane — often, but not always, a compound hinting at life — introduces the possibility of underground organisms.
- Humans
Otters and oil: Problems remain
The behavior of Alaska's southern sea otters may unwittingly expose them to toxic oil-spill residues.
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Challenges to building a disaster-resilient nation
Comment from David Applegate, chair of the National Science and Technology Council's Subcommittee on Disaster Reduction and senior science adviser for earthquake and geologic hazards at the U.S.Geological Survey.
- Earth
Pterodactyls may soar once more
Paleontologists and aeronautical engineers are designing a reconnaissance drone that will mimic the flight of an ancient flying reptile.
- Earth
New contender for Earth’s oldest rocks
Observing rare isotopes in rocks along the Hudson Bay in Northern Quebec suggest the rocks have remained intact for 4.28 billion years, making them Earth's oldest.
- Earth
Unveiling hidden craters
Earth is regularly bombarded by small meteorites, but most of the resulting craters are hard to find. A team reports finding one such crater in the forests of west-central Alberta.
- Earth
Seafloor chronicles
Survey of ocean floor reveals long history, from a geological fault to the wreckage of the Lusitania.
- Tech
Stimulus bill doesn’t ignore R&D
Featured blog: Here's where the economic-stimulus bill would attempt to revamp and reinvigorate federally financed research.
- Humans
Science & Society: News of the year, 2008
Science News writers and editors looked back at the past year's stories and selected a handful as the year's most interesting and important in the interface of Science & Society. Follow hotlinks to the full, original stories.
- Earth
Past gasps
Earth’s atmosphere during some past geological ages wasn’t as oxygen-deprived as previously thought, new experiments suggest.
