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1,394 results for: antarctica
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HumansSummer Reading
The staff of Science News presents wide-ranging recommendations of books for readers to pack for their summer vacations.
By Science News -
AgricultureFluid Security—Overcoming Water Shortfalls in the 21st Century
About 70 percent of Earth’s surface is covered with water, some 1.4 billion cubic kilometers of it. Too bad almost 96.5 percent of it’s salty, and another 2 percent is locked away as ice in remote places such as Greenland and Antarctica. All told, just a little more than 1 percent of our planet’s water […]
By Sid Perkins -
Planetary ScienceHigh Anxiety: Sudden solar flare highlights space risks
Measurements of energetic particles from an unusually strong solar flare that pummeled Earth early this year suggest that astronauts traveling or working in space might sometimes need to reach shelter within minutes of a warning.
By Sid Perkins -
EarthIcy Heat: Satellites look at heat flow through Antarctica’s crust
Using satellite observations of Earth's magnetic field, scientists can estimate the amount of heat flowing upward through Earth's surface under kilometers-thick ice.
By Sid Perkins -
EarthAntarctica’s gaining ice in some spots
Large portions of Antarctica are storing more snowfall than they once did.
By Sid Perkins -
Planetary ScienceEnceladus: Small but feisty
Close-up observations of Saturn's tiny moon Enceladus reveal that its south pole is hotter than its equator and that the icy satellite continues to undergo eruptions.
By Ron Cowen -
EarthSpores record changes in ozone concentration
Decreasing concentrations of atmospheric ozone over Antarctica have triggered changes in the spores of a plant that grows in the region, a trend that could give scientists insight into ancient extinctions.
By Sid Perkins -
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AnimalsTibet may be ancient home of big cats
A recently discovered fossil skull and teeth suggest that the ancestor of all big cats lived in what's now Tibet.
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AnimalsPenguin huddles move like traffic jams
When one emperor penguin takes a step, he sets off a wave of movement.
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EarthEarth sometimes shivers beneath thick blankets of ice
New analyses of old seismic data have distinguished the ground motions spawned by a previously unrecognized type of earthquake—quakes created by brief surges of massive glaciers.
By Sid Perkins