Search Results for: Polar Bears
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604 results
604 results for: Polar Bears
- Planetary Science
A buried lake on Mars excited and baffled scientists
Planetary scientists are still trying to explain how a lake could have formed beneath a kilometer and a half of Martian ice.
- Earth
Earth’s core may have hardened just in time to save its magnetic field
Earth’s inner core began to solidify sometime after 565 million years ago — just in time to prevent the collapse of the planet’s magnetic field, a study finds.
- Astronomy
These are the most-read Science News stories of 2018
From male birth control to wombat poop, Science News online readers had a wide variety of favorite stories on our website.
- Animals
Here’s yet more evidence that the mythical yeti was probably a bear
A more complete genetic analysis amps up the evidence that the legendary creatures known as yetis are actually bears.
- Planetary Science
Readers contemplate water on Mars and more
Readers had questions about the significance of finding water on mars, air pollution from wildfires and spray-on sensors.
- Climate
What happens when the Bering Sea’s ice disappears?
Record-low sea ice in 2018 sent ripples through the Bering Sea’s entire ecosystem. Will this be the region’s new normal?
- Planetary Science
5 things we’ve learned about Saturn since Cassini died
The Cassini spacecraft plunged to its death into Saturn six months ago, but the discoveries keep coming.
- Planetary Science
Two daring spacecraft aim to bring asteroid dust back to Earth
A pair of daredevil spacecraft that aim to bring asteroid dust back to Earth have reached their targets and are scouting for the best sampling spots.
- Ecosystems
Beavers are engineering a new Alaskan tundra
Climate change has enabled the recent expansion of beavers into northwestern Alaska, a trend that could have major ecological consequences for the region in the coming decades.
- Animals
Pandas have ultrasonic hearing
Giant pandas hear very high frequencies. Scientists still don’t know why.
- Climate
Arctic sea ice shrinks to second-lowest low on record
A warm summer helped shrink sea ice in the Arctic Ocean to a statistical tie with 2007 for the second smallest sea ice minimum on record.
- Climate
Year in review: Sea ice loss will shake up ecosystems
Researchers are studying the complex biological consequences of polar melting and opening Arctic passageways.
