Science

Swedish environmental activist Greta Thunberg, center, takes part during the Climate Strike, Friday, Sept. 20, 2019 in New York.  Rallies calling for action on climate change are happening in cities around the world Friday ahead of a summit on the issue.  (AP Photo/Eduardo Munoz Alvarez)
September 20, 2019 - 1:39 pm
NEW YORK (AP) — A wave of climate change protests swept across the globe Friday, with hundreds of thousands of young people sending a message to leaders headed for a U.N. summit: The warming world can't wait for action. Marches, rallies and demonstrations were held from Canberra to Kabul and Cape...
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The German icebreaker and research vessel Polarstern at shore in Tromso, Norway, Wednesday Sept. 19, 2019. Scientists from more than a dozen nations are preparing to launch the biggest and most complex research expedition ever attempted in the central Arctic. About 100 researchers will set sail Friday from Tromso, Norway, aboard the German icebreaker Polarstern in an effort to understand how climate change is affecting the Arctic and regions beyond. (Rune Stoltz Bertinussen/NTB Scanpix via AP)
September 20, 2019 - 2:15 am
BERLIN (AP) — Scientists from more than a dozen nations are preparing to launch the biggest and most complex research expedition ever attempted in the central Arctic. About 100 researchers will set sail Friday from Tromsoe, Norway, aboard a German icebreaker in an effort to understand how climate...
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FILE - This April 14, 2019 file photo shows a western meadowlark in the Rocky Mountain Arsenal National Wildlife Refuge in Commerce City, Colo. According to a study released on Thursday, Sept. 19, 2019, North America’s skies are lonelier and quieter as nearly 3 billion fewer wild birds soar in the air than in 1970. Some of the most common and recognizable birds are taking the biggest hits, even though they are not near disappearing yet. The population of eastern meadowlarks has shriveled by more than three-quarters with the western meadowlark nearly as hard hit. (AP Photo/David Zalubowski, File)
September 19, 2019 - 2:11 pm
WASHINGTON (AP) — A comprehensive study shows there are nearly 3 billion fewer wild birds in North America than in 1970. The new study finds that the bird population in the United States and Canada was probably around 10.1 billion nearly half a century ago and has dropped 29% to about 7.2 billion...
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Dead fish lie on the shores of Koroneia Lake in northern Greece, on Thursday, Sept. 19, 2019. Tens of thousands of dead fish are washing up as the water level has plummeted to less than a meter deep (three feet) and the lack of oxygen in the water is leading to mass mortality of everything in it. (AP Photo/Giannis Papanikos)
September 19, 2019 - 12:54 pm
KORONEIA, Greece (AP) — Tens of thousands of dead fish have been found on the banks of a lake in a protected nature reserve in northern Greece after high temperatures and drought conditions caused a severe drop in water levels. State environmental officials said Thursday that the water level at...
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This undated photo provided by the California Department of Fish and Wildlife shows a Paiute cutthroat trout. For the first time in nearly a century, the California trout species will swim in a mountain creek that is its native habitat, marking a major milestone that conservationists hope will lead to a thriving population and removal of its threatened status. About 30 Paiute cutthroat trout will be plucked Wednesday, Sept. 18, 2019 from Coyote Valley Creek and hauled in cans strapped to pack mules about two miles (3.2 kilometers) to be dumped back into a stretch Silver King Creek in Alpine County's Long Valley, where the shimmering species glided through the cold water for thousands of years. (California Department of Fish and Wildlife via AP)
September 18, 2019 - 11:02 pm
LOS ANGELES (AP) — For the first time in nearly a century, a rare California trout species is swimming in a mountain creek that is its native habitat, marking a major milestone that conservationists hope will lead to a thriving population and removal of its threatened status. About 30 Paiute...
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September 17, 2019 - 11:13 pm
LOS ANGELES (AP) — The University of California is dumping fossil fuel investments from its nearly $84 billion pension and endowment funds because they are a financial risk, its top financial officers announced Tuesday. "Our job is to make money for the University of California, and we're betting...
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In this image taken from NASA video actor Brad Pitt, left, star of the new space movie “Ad Astra,” speaks from NASA headquarters in Washington, to astronaut Nick Hague abroad the International Space Station, on Monday, Sept. 16, 2019. (NASA via AP)
September 16, 2019 - 5:44 pm
CAPE CANAVERAL, Fla. (AP) — Brad Pitt, star of the new space movie "Ad Astra," had a burning question for a real-life astronaut. "Who was more believable? Clooney or Pitt?" In a televised call Monday, NASA astronaut Nick Hague answered Pitt — "absolutely" — getting a big laugh. Pitt's Hollywood pal...
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Activists protest during a rally outside the White House in Washington, Friday, Sept. 13, 2019. (AP Photo/Susan Walsh)
September 16, 2019 - 5:27 am
BERLIN (AP) — Civil society groups say they expect hundreds of thousands of people to join a worldwide protest for climate action Friday. Environmental activists, trade unions and church groups in Germany said Monday that more than 400 rallies are planned in the country alone. The protest, billed...
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This image made available by the European Space agency shows galaxies in the Hubble Ultra Deep Field 2012, an improved version of the Hubble Ultra Deep Field image. A study from the Max Planck Institute in Germany published Thursday, Sept. 12, 2019, in the journal Science uses a new technique to come up with a rate that the universe is expanding that is nearly 18% higher than the number scientists had been using since the year 2000. (NASA, ESA, R. Ellis (Caltech), HUDF 2012 Team via AP)
September 12, 2019 - 2:13 pm
WASHINGTON (AP) — New calculations suggest the universe could be a couple billion years younger than scientists now estimate. The generally accepted age of the universe is 13.7 billion years, but the new research calculates it could be around 11.4 billion years. In recent years scientists have...
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This undated photo provided by researchers in September 2019 shows an Electrophorus voltai, one of the two newly discovered electric eel species, in Brazil's Xingu River. While 250 species of fish in South America generate electricity, only electric eels use it to stun prey and for self-protection. (Leandro Sousa via AP)
September 12, 2019 - 10:36 am
WASHINGTON (AP) — Researchers report two newly discovered species of electric eels in South America, one of which can deliver a bigger jolt than any other known animal. The researchers collected 107 eels in four countries and found differences in their DNA, along with minor physical variations. One...
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