Jan 21 Stretched polar vortex, moisture and a lack of sea ice all to blame for dangerous winter blast, meteorologists say By Seth Borenstein, Associated Press Meteorologists said the eastern two-thirds of the nation is threatened with a winter storm that could rival the damage of a major hurricane and has some origins in an Arctic that is warming from climate change. Continue reading
Jan 20 Antarctic penguins threatened as warming temperatures cause them to breed earlier, research shows By Seth Borenstein, Associated Press A new study finds that warming temperatures are causing Antarctic penguins to breed earlier, threatening some species with extinction by century's end. Continue reading
Jan 19 Watch 12:00 On board the voyage to Antarctica to learn why a massive glacier is melting By Miles O'Brien, Kate Tobin Scientists are worried about the melting of Antarctica's ice sheets and what it could mean for sea levels. There's a two-month-long journey underway to conduct research that will better explain what's happening. But it's a journey that provides no guarantees… Continue watching
Jan 16 Watch 4:10 Introducing 'Horizons' and 'Compass Points' from PBS News We have exciting news about PBS News and two new programs. These are two original productions that expand the depth and reach of our journalism. Hosted by William Brangham, "Horizons from PBS News" explores the science, health and technology news… Continue watching
Jan 15 Ailing astronaut returns to Earth from space station early in NASA's first medical evacuation By Marcia Dunn, Associated Press It was an unexpected finish to a mission that began in August and left the International Space Station with only one American and two Russians on board. Continue reading
Jan 14 NASA sends 4 astronauts back to Earth in first medical evacuation By Marcia Dunn, Associated Press An astronaut in need of doctors' care departed the International Space Station with three crewmates on Wednesday in NASA's first medical evacuation. Continue reading
Jan 14 Scientists say another hot year is a 'warning shot' of a shifting, dangerous climate By Seth Borenstein, Associated Press Scientists calculate that last year was one of the three hottest on record, along with 2024 and 2023. Continue reading
Jan 11 Watch 4:53 Scientists use new technology to track individual monarch butterfly migrations By Ali Rogin, Kaisha Young Monarch butterflies make one of the most extraordinary migrations in the natural world, often traveling thousands of miles across North America. Now, scientists are using new tracking technology to get a greater understanding of those journeys. Ali Rogin speaks with… Continue watching
Jan 08 NASA cuts space station mission short after an astronaut's medical issue By Adithi Ramakrishnan, Associated Press The space agency said Thursday the U.S.-Japanese-Russian crew of four will return to Earth in the coming days, earlier than planned. Continue reading
Jan 02 The year's first meteor shower and supermoon to overlap in the sky By Adithi Ramakrishnan, Associated Press The Quadrantid meteor shower peaks Friday night into Saturday morning, but fewer than 10 meteors will be visible per hour due to light from Saturday's supermoon. Continue reading