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[ad_1] NEW DELHI: Major droughts and pluvials - periods of excessive precipitation and water storage on land - have indeed been occurring more often, confirmed a new National Aeronautics and Space Administration( NASA )-led study. Droughts and floods will become more frequent and severe as our planet warms and climate changes, scientists have predicted, but detecting this on regional and continental scales has proven difficult, the study said. Two NASA, US, scientists examined 20 years of data from the NASA/German GRACE and GRACE-FO satellites to identify extreme wet and dry events, the study published in the journal Nature Water said. Floods and droughts account for more than 20 per cent of the economic losses caused by extreme weather events in the US each year. The economic impacts are similar around the world, though the human toll tends to be most devastating in poor neighbourhoods and developing nations. The scientists also found that the worldwide intensity of these extre

[ad_1] NASA is using its advanced techology to head for space — so it can monitor our home. In its latest climate report, the agency says 2022 was the globe's fifth-hottest year on record, part of a long-term warming trend attributed to climate change caused by humans. Some of its newest high-tech efforts will help gather more data on how our planet is changing.  NASA has a new earth system observatory that will monitor a series of five advanced satellite missions that will monitor nearly every aspect of Earth. It will give NASA a 3D view of how the earth's systems are operating and are impacted by climate change.  "Really looking at the heartbeat of the planet, just a whole host of things that we are tracking every single day," said Randy Friedl, deputy director of Earth Science at NASA's Jet Propulsion Laboratory.  In December, NASA launched a rocket from California carrying a satellite known as SWOT, short for

[ad_1] NEW DELHI: Global warming may uncover an ancient river landscape hidden beneath the East Antarctic Ice Sheet for a million years, according to a recent study. Although this ancient landscape remains untouched by the massive ice retreat in the region, projected climate warming could expose it in the future, as per a paper published on Tuesday in Nature Communications. The author of the study and who researches ice sheet behavior, long-term, and landscape evolution at Durham University in the UK, Stewart Jamieson , told ABC News that for about 34 million years, ice has covered Antarctica. Before that, the continent had a comparatively warm climate similar to modern-day southern South America, such as the Patagonia region in Argentina and Chile. According to Jamieson, at one time, there was evidence that Antarctica had tropical vegetation, including palm trees. Jamieson said, Scientists have recently found a vast landscape shaped by ancient rivers in Antarctica. This land

[ad_1] Getting off to a ground-shaking start, NASA's $1.2 billion Psyche asteroid probe roared into space atop a Falcon Heavy rocket Friday, setting off on a 2.2-billion-mile voyage to a rare, metal-rich asteroid that may hold clues about how the cores of rocky planets like Earth first formed. "We're going to learn about a previously unstudied ingredient that went into making our habitable Earth, and that is the metal that is now in the Earth's core and the cores of all of the rocky planets, cores that we can never visit but of course that we want to learn about," said principal investigator Lindy Elkins-Tanton. "And Psyche is the single largest metallic object in our solar system. So if we want to learn about our cores, that's where we need to go." A SpaceX Falcon Heavy rocket with the Psyche spacecraft launches from NASA's Kennedy Space Center in Florida, on Oct. 13, 2023.

[ad_1] WASHINGTON: Black holes are gatherers, not hunters. They lie in wait until a hapless star wanders by. When the star gets close enough, the black hole 's gravitational grasp violently rips it apart and sloppily devours its gasses while belching out intense radiation. Astronomers using NASA 's Hubble Space Telescope have recorded a star's final moments in detail as it gets gobbled up by a black hole. These are termed 'tidal disruption events'. But the wording belies the complex, raw violence of a black hole encounter. There is a balance between the black hole's gravity pulling in star stuff, and radiation blowing material out. In other words, black holes are messy eaters. Astronomers are using Hubble to find out the details of what happens when a wayward star plunges into the gravitational abyss. Hubble can't photograph the AT2022dsb tidal event's mayhem up close, since the munched-up star is nearly 300 million light-years away at the core o

[ad_1] America's most experienced astronaut says her fully commercial visit to the International Space Station this week is a critical stepping stone on the road to space tourism, private-sector orbital research and development of commercially operated space stations. In a space-to-ground interview with CBS News, retired NASA astronaut Peggy Whitson, veteran of three NASA flights with a U.S.-record 665 days in orbit and 10 spacewalks to her credit, compared the early days — and high costs — of commercial spaceflight with the dawn of commercial aviation when only the wealthy could afford to fly. Retired astronaut Peggy Whitson, commander of the second fully commercial flight to the International Space Station, chats with CBS News about the progress of her mission and its role in developing a private space station. Axiom Space "Back in the '30s, '40s

[ad_1] Nasa scientists have spotted a massive black region on the Sun, which is 20 times larger than Earth. The appearance of the “coronal hole” has prompted US federal agency National Oceanic and Atmospheric Administration (NOAA) to sound out an alert for geomagnetic storms as the gaping hole is unleashing 1.8 million mile-per-hour solar winds towards Earth , which will impact the planet on Friday. Scientists are closely monitoring the situation to see if the winds will impact the Earth's magnetic field, satellites and technology. This was the second hole to appear in one week. Both holes were captured by Nasa’s Solar Dynamics Observatory, which studies the Sun. The latest hole was discovered on March 23 near the Sun’s South Pole. The “hole” isn't really a hole, but a large region much cooler than the rest of the Sun, causing it to appear black. “Coronal holes are magnetically open areas that are one source of high-speed solar wind. They appear dark when viewed in many

[ad_1] 7/12: CBS Evening News - CBS News Watch CBS News Sizzling heat blankets the West, but the worst could be on the way; NASA releases stunning new image from James Webb Space Telescope on its 1-year anniversary Be the first to know Get browser notifications for breaking news, live events, and exclusive reporting. Not Now Turn On [ad_2] Source link https://worldnews2023.com/top-stories/7-12-cbs-evening-news/?feed_id=32295&_unique_id=64afa61ed9a17