Science

FILE - This undated file photo provided by the Tennessee Department of Correction shows death row inmate Sedley Alley. The Innocence Project hopes to use DNA evidence to exonerate Alley 13 years after his execution. If the Innocence Project succeeds with Alley, it will be the first time anyone has used such evidence to exonerate a person who has already been executed. (AP Photo/Tennessee Department of Correction, File)
November 18, 2019 - 1:08 am
MEMPHIS, Tenn. (AP) — Since the early 1990s, 22 death row inmates around the U.S. have been exonerated through DNA evidence. Now, the Innocence Project hopes to go even further and use DNA evidence to exonerate a Tennessee man executed 13 years ago. Sedley Alley received a lethal injection in 2006...
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FILE - In this July 1, 1960 file photo, a chemist works in laboratory in Cambridge, Mass. For decades, scientists have used "statistical significance" to estimate whether their results are reliable or just flukes. It’s long been criticized, but 2019 has brought two high-profile calls to get rid of it entirely. (AP Photo/Peter J. Carroll)
November 17, 2019 - 1:04 am
NEW YORK (AP) — Earlier this fall Dr. Scott Solomon presented the results of a huge heart drug study to an audience of fellow cardiologists in Paris. The results Solomon was describing looked promising: Patients who took the medication had a lower rate of hospitalization and death than patients on...
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This photo provided by NASA shows talian astronaut Luca Parmitano and U.S. astronaut Andrew Morgan perform maintenance on the International Space Station during a space walk on Friday, Nov. 15, 2019. The astronauts ventured out with dozens of tools and four new pumps for the Alpha Magnetic Spectrometer. NASA considers these spacewalks the most difficult since the Hubble Space Telescope repairs a few decades ago. (NASA via AP)
November 15, 2019 - 8:40 am
CAPE CANAVERAL, Fla. (AP) — Astronauts began an extraordinarily complicated series of spacewalks Friday to fix a cosmic ray detector at the International Space Station. Italian astronaut Luca Parmitano and U.S. astronaut Andrew Morgan ventured out Friday with dozens of tools to dissect the Alpha...
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A lander is lifted during a test of hovering, obstacle avoidance and deceleration capabilities at a facility in Huailai in China's Hebei province, Thursday, Nov. 14, 2019. China has invited international observers to the test of its Mars lander as it pushes for inclusion in more global space projects. Thursday's test was conducted at a site outside Beijing simulating conditions on the Red Planet, where the pull of gravity is about one-third that of Earth. (AP Photo/Andy Wong)
November 14, 2019 - 11:35 am
HUAILAI, China (AP) — China showed off its Mars spacecraft during a landing test Thursday as the country pushes for inclusion in more global space projects. The demonstration of hovering, obstacle avoidance and deceleration capabilities was conducted at a site outside Beijing simulating conditions...
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In this Aug. 20, 2019 file photo, a relative embraces a young patient receiving treatment for dengue at the University School Hospital in Tegucigalpa, Honduras. In an international report released on Wednesday, Nov. 13, 2019, doctors say children are growing up in a warmer world that will hit them with more and different health problems than their parents had. (AP Photo/Eduardo Verdugo)
November 14, 2019 - 1:23 am
WASHINGTON (AP) — Children are growing up in a warmer world that will hit them with more and different health problems than their parents experienced, an international report by doctors said. With increasing diarrhea diseases, more dangerous heat waves, air pollution and increases in mosquito-borne...
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Swedish teen climate activist Greta Thunberg waves from the 48-foot (15-meter) catamaran La Vagabonde as it departs Salt Ponds in Hampton, Va., on Wednesday, Nov. 13, 2019. Thunberg left North America on a return trip across the Atlantic hitching a renewable-energy ride with an Australian family aboard their catamaran. (Rob Ostermaier/The Virginian-Pilot via AP)
November 13, 2019 - 12:24 pm
HAMPTON, Va. (AP) — Swedish teen climate activist Greta Thunberg hitched a renewable-energy ride back to Europe on Wednesday, sailing into the Atlantic on a trip she hopes will get her to Madrid in time for another climate conference, and then home for the holidays. Thunberg tweeted as she took to...
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FILE - In this March 12, 2019 file photo people walk at the University Village area of the University of Southern California in Los Angeles. USC is among three universities and a health care institution who are sharing a gift of more than $1 billion that’s one of the largest in the history of higher education. The $260 million apiece gifts announced Wednesday, Nov. 13 come from this year’s sale of the Lord Corp. to Parker-Hannifin Corp. (AP Photo/Reed Saxon, File)
November 13, 2019 - 11:45 am
Three universities and a health care institution are sharing a gift of more than $1 billion that’s one of the largest in the history of higher education, they announced Wednesday. Receiving $260 million apiece will be Duke University, the Massachusetts Institute of Technology, the University of...
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Greta Thunberg, a 16-year-old climate activist from Sweden, sits on a catamaran docked in Hampton, Va., on Tuesday, Nov. 12, 2019. Thunberg will leave North America and begin her return trip across the Atlantic on Wednesday aboard a 48-foot (15-meter) catamaran sailboat whose passengers include an 11-month-old baby. The boat leaves little to no carbon footprint, boasting solar panels and a hydro-generators for power. (AP Photo/Ben Finley)
November 13, 2019 - 7:07 am
PARIS (AP) — The world's thirst for oil will continue to grow until the 2030s, with climate-damaging emissions climbing until at least 2040 — and consumers' insatiable appetite for SUVs is a big reason why. Mounting demand for plastic is another factor. So is increasing plane travel. And the...
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This image released on Wednesday, Nov. 13, 2019, by the Japan Aerospace Exploration Agency (JAXA), shows asteroid Ryugu taken by Japan’s Hayabusa2 spacecraft. The Japan spacecraft has departed from the distant asteroid, starting its yearlong journey home after successfully completing its mission to bring back soil samples and data that could provide clues to the origins of the solar system. (JAXA via AP)
November 13, 2019 - 3:28 am
TOKYO (AP) — Japan's Hayabusa2 spacecraft departed from a distant asteroid on Wednesday, starting its yearlong journey home after successfully completing its mission to bring back soil samples and data that could provide clues to the origins of the solar system, the country's space agency said. The...
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FILE - This Tuesday, Jan. 1, 2019 image made available by NASA shows the Kuiper belt object originally called "Ultima Thule," about 1 billion miles beyond Pluto, encountered by the New Horizons spacecraft. On Tuesday, Nov. 12, 2019, NASA announced its official name "Arrokoth" which means "sky" in the language of the Native American Powhatan people.(NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute via AP, File)
November 12, 2019 - 9:11 pm
CAPE CANAVERAL, Fla. (AP) — The most distant world ever explored 4 billion miles away finally has an official name: Arrokoth. That means "sky" in the language of the Native American Powhatan people, NASA said Tuesday. NASA's New Horizons spacecraft flew past the snowman-shaped Arrokoth on New Year'...
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