7,847 results
7,847 results for: Geology
- Chemistry
Energy on Ice
Recent efforts to unlock a frozen source of natural gas deep under the permafrost and ocean floor have energized prospects for a methane-hydrate industry.
- Earth
Dead zones may record river floods
Microorganisms that live in seafloor sediments deposited beneath periodically anoxic waters near the mouths of rivers could chronicle the years when those rivers flooded for extended periods.
- Earth
PCBs damage fish immune systems
A common Arctic fish can suffer subtle immunological impairments from exposure to polychlorinated biphenyls at concentrations recorded in some remote polar waters.
- Earth
Really hot water
Hot-water tanks can accumulate radioactive deposits from naturally occurring radioactive material.
- Earth
Seismic vibes gauge Earth’s crust
New seismic observations are adding to scientists' knowledge of the thickness of Earth's crust, especially in the Southern Hemisphere.
- Humans
From the May 25, 1935, issue
A yacht's air resistance-reducing mast, plants that absorb poison, and new fossils from Patagonia.
- Humans
When Fair Means Superb: Young scientists and engineers meet in international competition
A record 1,447 high school students from 45 countries shone their brightest in Phoenix last week as they competed at the Intel International Science and Engineering Fair.
- Earth
Hit Again: December temblor probably caused new Sumatran quakes
Seismic activity that rattled the Indonesian region early this week, including a quake that measured a whopping magnitude 8.7, was triggered by December's massive tsunami-spawning earthquake, scientists suggest.
- Humans
Letters from the March 26, 2005, issue of Science News
Sleeper issue “Goodnight moon, hello Mom and Dad” (SN: 1/22/05, p. 61) attributes behaviors of earlier bedtime, longer sleeping, and earlier weaning to “greater personal independence” in children who sleep alone. It is equally possible that these behaviors are due to something else. Research predicting which children and families will benefit from co-sleeping or alone […]
- Planetary Science
Exploring Mars
Here’s your chance to help NASA explore the surface of Mars. At its Marsoweb site, the agency provides detailed maps, engineering data, and interactive tools for studying the Red Planet’s alien terrain. Visitors are invited to look for and report important geologic features that haven’t yet been catalogued or even viewed by researchers. Go to: […]
- Planetary Science
Martian Landscaping: Spacecraft eyes evidence of a frozen sea
After analyzing images taken by the orbiting Mars Express spacecraft, researchers reported that a flat region near the Red Planet's equator holds a frozen ocean that was once the size of the North Sea.
- Earth
Muddy Waters
Even though human activities such as agriculture and deforestation are sending more sediment into streams and rivers, less of that material is reaching river deltas, a trend that exacerbates problems such as subsidence and coastal erosion.
