Although most Americans believe global warming's effects will take hold during their lifetime, they don't expect these changes to pose a serious threat…Read More »
to their way of life, according to a new poll.
A Gallup survey found that 54 percent of Americans believe global warming is already impacting the planet; another 3 percent think these effects will occur in a few years and 8 percent think these effects will occur in their lifetime. Meanwhile, 16 percent think global warming's effects will happen sometime after they die, and 18 percent don't expect these effects to ever take hold.
A cloud is a cloud, is a cloud. But scientists have now found that at least some clouds contain biological particles that can be genetically analyzed…Read More »
to show where the cloud came from.
In the case of a study presented last week at the Ocean Sciences Meeting in Honolulu, the clouds were over the Arctic Ocean and the particles were microgels -- snot-like substances containing proteins -- created by algae that live on sea ice.
Thanks to the government shutdown and Hurricane Sandy, America's national parks saw a three percent drop in visitors last year compared to 2012, the National…Read More »
Park Service announced today (March 10).
According to the statement, more than 5 million people were turned away from parks and monuments within the National Park System in October, when a budget impasse froze the federal government for 16 days. "These closures had a real impact on local businesses and communities that rely on the national parks as important drivers for their local economies," Jonathan Jarvis, NPS director, said in a statement.
Next time a polar vortex dips into your neighborhood, take a close look at the icicles. You'll notice they are covered in ripples.
This right-in-front-of-your-nose…Read More »
phenomenon is largely mysterious, as researchers reported last October in The New Journal of Physics. Impurities in the water seem to explain the shape — icicles made with distilled water don't ripple — but everything study researcher and University of Toronto physicist Stephen Morris has tried to do to change the length of the ripples has failed. No matter what, each ripple has a length of 0.4 inches (1 centimeter). And no one knows why.
The Alcantara is a 32-mile-long (51 kilometers) river in Sicily. Several thousand years ago, lava flow from nearby Mount Etna…Read More »
, the largest active volcano in Italy, blocked the river bed. The lava cooled and crystallized into columns, and over time, the river cut a channel through the easily erodible columns, creating extraordinary gorges and ravines.
Millions of years ago, aquatic sloths roamed shallow waters off the coast of modern-day Chile and Peru. These now-extinct swimmers had highly dense bones…Read More »
that facilitated their transition from land to sea by helping them sink to seafloors to graze on vegetation, according to a new report.
Only two groups of sloths exist today, both of which live in trees and grow to be the size of small monkeys. But during the Miocene and Pliocene — about 25 million to 4 million years ago — a great diversity of sloths crawled the Earth, including giant sloths that grew to be the size of elephants, and slightly smaller ones that spent time underwater.
Hundreds of wandering "rogue" black holes may dwell in the Milky Way — and now researchers say they know how to detect them. Discovering these strange…Read More »
objects could shed light on the formation of the Milky Way and other galaxies.
No one knows exactly how the Milky Way came to exist. But according to one popular model of galaxy formation, the building blocks of the Milky Way were dwarf galaxies that collided and merged shortly after the Big Bang.
A powerful telescope in Chile has imaged the largest yellow star ever discovered.
The star, called HR 5171 A, shines 12,000 light-years from Earth in…Read More »
the center of a new image released today (March 12). Known as a "yellow hypergiant," The star is more than 1,300 times the diameter of the sun, much larger than scientists expected after earlier observations, European Southern Observatory officials said in a statement. You can see the yellow hypergiant in a new video from ESO as well.
Like an ice age radiator, heat from volcanoes helped Antarctica's plants and bugs survive Earth's glacial periods, scientists think based on the result…Read More »
of a new study.
The findings suggest that volcanoes can provide a cozy home for plants and animals during ice ages, either in ice caves or on warm ground heated by geothermal features such as hot springs, the researchers said. The study was published today (March 10) in the journal Proceedings of the National Academy of Sciences.