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☆ This new photo of a supermassive black hole is unlike any before, showing powerful magnetic fields spiraling around it
▼ + stars: | 2024-03-27 | by ( Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +6 min

Read previewThe supermassive black hole at the heart of our galaxy has a side you've never seen before. A new image reveals powerful magnetic fields swirling around our hometown black hole, which is called Sagittarius A* (pronounced "A-star"). EHT had previously imaged its first black hole, Messier 87, in polarized light as well, though it doesn't look quite as striking:The Messier 87 supermassive black hole imaged in polarized light. EHT CollaborationSince both black holes have similar structures of magnetic fields, despite their immense difference in size, the EHT scientists now suspect that all supermassive black holes might have magnetic structures like this. Bigger black hole breakthroughs may be in storeFurther imaging with new innovative techniques and technologies could reveal even more secrets of supermassive black holes, both big and small.

Persons: —, EHT, Sara Issaoun, Issaoun, We've, NASA's, Michael Johnson, Johnson, that's Organizations: Service, Business, Messier, Harvard, Smithsonian Center for Astrophysics, NASA's Goddard Space Flight, American Astronomical Society Locations: Greenland

☆ An exploding star nova is due to show up in our skies soon. Here's how to spot it.
▼ + stars: | 2024-03-18 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +4 min

Read previewA nearby exploding star is due to offer a spectacular show that could outshine our North Star this year. The star, which is 3,000 light-years from Earth, is expected to burst in a gigantic explosion — known as a nova — in the coming months. This cosmic blast happens when a tiny white dwarf — the core of a dead star — is locked in the orbit of a giant red star. An artist's impression of a white dwarf exploding near a red giant. Nearby is an arc of four visible stars called the Corona Borealis.

Persons: —, Bradley Schaefer, NASA's, Schaefer, Vega, Pons, Brooks Organizations: Service, Star, NASA, Business, Louisiana State University, New York Times, NASA's Goddard Space Flight, Times, Corona, Canada Locations: Canada

☆ Mars could be creating 'giant whirlpools' deep within our planet's oceans
▼ + stars: | 2024-03-13 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +5 min

Mars may be 140 million miles away, but its gravitational pull could be impacting Earth's oceans. Scientists at the University of Sydney in Australia believe the red planet's tug is creating "giant whirlpools" in the oceans called eddies, which can shift the deep-sea floor. This, they claim, is part of a 2.4-million-year climate "grand cycle" on Earth that has been ongoing for at least 40 million years. The red planet's orbit and ours are locked in an intricate dance, and every so often, these line up so that Mars' gravitational pull on Earth is just a little more intense — this is called resonance. This information is crucial when refining models helping us see how our planet's intricate climate will progress over time.

Persons: Adriana Dutkiewicz, NASA's, Dietmar Müller, Malin, Matthew England, Benjamin Mills, wasn't, Mills Organizations: Service, University of Sydney, Business, NASA's Goddard Space, geosciences, Nature Communications, Mars NASA, JPL, Systems, University of New, New, University of Leeds Locations: Australia, Japan, New, University of New South Wales, Sydney

☆ NASA shuts down $2 billion satellite refueling project after contractor Maxar is criticized for poor performance
▼ + stars: | 2024-03-01 | by ( Michael Sheetz | In Michaeljsheetz | ) www.cnbc.com time to read: +3 min

NASA is shutting down a $2 billion project to test satellite refueling in space, it announced Friday, after the agency's auditor criticized the program's lead contractor, Maxar, citing "poor performance." The space agency said in a statement that the OSAM-1 — On-orbit Servicing, Assembly, and Manufacturing 1 — project was being discontinued after nearly a decade of work. NASA did not respond to CNBC's request for comment on how many personnel will be affected as a result of OSAM-1's cancellation. Maxar was taken private by private equity firm Advent International in May 2023 before being split into two businesses: Maxar Intelligence, focused on satellite imagery and analytics, and Maxar Space Systems, focused on spacecraft manufacturing. NASA's Goddard Space Flight Center in Maryland was leading the work on OSAM-1, with Maxar Space Systems as the project's prime contractor under multiple deals.

Persons: Eric Glass, Maxar, NASA's, Goddard, General Organizations: NASA, Space Systems, CNBC, International, Maxar Intelligence, Systems, NASA's Goddard Space Flight, Maxar, U.S, Northrop Locations: Maryland, Goddard

☆ Space photos from 5 recent moon-landing missions show how tiny engineering errors can cause big problems, like crashing or landing sideways
▼ + stars: | 2024-02-27 | by ( Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +7 min

The Houston-based company's uncrewed Odysseus lander was almost lost to one of the tiniest possible mistakes. The view from the Intuitive Machines Odysseus lander as it descended to its landing site. Intuitive MachinesWith less than two hours to go before landing, Intuitive Machines engineers frantically whipped up a new navigation system. Indeed, several robotic moon landing attempts have crashed or otherwise malfunctioned in the last few years. Similarly, Intuitive Machines' success on Thursday shows that small errors don't necessarily have to spell the end of a mission.

Persons: Steve Altemus, Trent Martin, Odysseus, Astrobotic —, Peregrine, Astrobotic Astrobotic, Astrobotic, Vikram, SpaceNews, Robert Braun, Kailasavadivoo Sivan, ispace, NASA's, Braun, Japan's Smart Lander, SLIM, LEV, Takara Tomy Organizations: US, Business, NASA, Reconnaissance, Goddard, Arizona State University, Johns Hopkins Applied Physics Laboratory, NASA's Goddard Space Flight, freefall, JAXA, Takara, Sony Group Corporation, Doshisha Locations: India, Japan, Houston

☆ Something in the universe is spewing surprising amounts of high-energy radiation, and astronomers don't know what or why
▼ + stars: | 2024-01-18 | by ( Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +6 min

The astronomers were mapping space's background glow of gamma rays, the brightest and most energetic type of light on the electromagnetic spectrum. They were surprised to find way more gamma rays coming from one part of the sky than anywhere else. AdvertisementAn artist's concept shows the entire sky in gamma rays, with the plane of our galaxy across the middle. Magenta circles indicate the area where astronomers found more high-energy gamma rays than average. Some unknown object or process out there in the universe may be producing both the gamma rays and the UHECRs.

Persons: —, Alexander Kashlinsky, NASA's, Swift, Cruz deWilde Kashlinsky, it's, Kashlinsky, Fernando Atrio, UHECRs, they're Organizations: Service, NASA, Business, University of Maryland, American Astronomical Society, NASA's Goddard Space, Fermi, Planck, ESA, University of Salamanca, JPL, Caltech Locations: New Orleans, UHECRs, Spain

☆ Nasa astronomers says signal coming from outside our galaxy is 'unexpected and as yet unexplained'
▼ + stars: | 2024-01-14 | by ( Polly Thompson | ) www.businessinsider.com time to read: +4 min

NASA scientists have found a powerful new gamma-ray signal coming from outside our galaxy. AdvertisementNASA astronomers have discovered an unexpected "signal" coming from outside our galaxy, which they can't explain. The scientists were analyzing 13 years of data from the Fermi Gamma-ray Space Telescope when they noticed the mysterious signal. NASA's Fermi Gamma-ray Space Telescope, illustrated here, scans the entire sky every three hours as it orbits Earth. NASA's unexpected discovery could help astronomers confirm or challenge ideas about how the dipole structure is created.

Persons: —, Francis Reddy, NASA's, Alexander Kashlinsky, Fermi, Chris Smith, Chris Shrader, Pierre Auger, Fernando Atrio Organizations: NASA, Service, Fermi, NASA's Goddard Space Flight, University of Maryland, American Astronomical Society, Goddard Locations: Argentina

☆ NASA probe to observe near-Earth asteroid's 2029 close encounter
▼ + stars: | 2023-11-10 | by ( Steve Gorman | ) www.reuters.com time to read: +5 min

When it does, a spacecraft launched by NASA in 2016 is expected to be in position to provide a detailed examination of this rare close encounter. The tidal pull of Earth's gravity likely will cause measurable disturbances to the asteroid's surface and motion, changing its orbital path and rotational spin. The spacecraft is set to observe the asteroid's Earth flyby as it nears and ultimately catches up with Apophis. PLANETARY SCIENCE AND DEFENSELike other asteroids, Apophis is a relic of the early solar system. Close examination of Apophis could give planetary defense experts valuable information about the structure and other properties of asteroids.

Persons: NASA's, Michael Nolan, It's, Nolan, it's, Steve Gorman, Will Dunham Organizations: NASA, APEX, NASA's Goddard Space, Empire, University of Arizona, SPACECRAFT'S SECOND, Planetary Science, Thomson Locations: Utah, Africa, Europe, Apophis, Los Angeles

☆ NASA's Hubble spots a mysterious flash in the middle of nowhere that defies science
▼ + stars: | 2023-10-10 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +4 min

Scientists had previously thought Luminous Fast Blue Optical Transients were caused by dying stars. AdvertisementAdvertisementA bright flash of blue light appearing in the middle of seemingly empty space has scientists confused. Scientists previously thought they knew what could cause such a bright burst of energy. That's much too far for a core-collapse supernova to travel. There are a few more hypotheses for what could cause the bright blue flashes.

Persons: —, Ashley Chrimes, Finch, hasn't, James Webb Organizations: Service, NASA, Space Agency Research, Space Flight, Royal Astronomical Society

☆ Photos show the 3.86 billion-mile journey of NASA's OSIRIS-REx asteroid sample mission from start to finish
▼ + stars: | 2023-09-28 | by ( Jenny Mcgrath | ) www.businessinsider.com time to read: +6 min

NASA's OSIRIS-REx has been traveling for seven years to get an asteroid sample to Earth. Check out its 3.86 billion-mile journey from launch to asteroid sample landing in the photos below. NASA/Keegan BarberAfter collecting the largest asteroid sample ever brought to Earth, OSIRIS began its long journey home. AdvertisementAdvertisementSample retrievalRecovery team members gather around a capsule containing Bennu asteroid samples as part of NASA's OSIRIS-REx mission. Analyzing the sampleLockheed Martin recovery specialists Levi Hanish and Michael Kaye take the lid off NASA's OSIRIS-REx asteroid sample.

Persons: REx, —, what's, OSIRIS, imager, Bennu, NASA's, Dante Lauretta, Keegan Barber, Rick Bowmer, NASA’s, Molly Wasser, Martin, Levi Hanish, Michael Kaye, Robert Markowiz, Noah Petro, What's, It's Organizations: Service, REx, NASA, United Launch Alliance, Atlas, Goddard, University of Arizona, Survey, NASA's Goddard Space, Earth, Department of Defense's Utah, AP, US Air Force, NASA’s Johnson Space Center, Space Center, JPL, Caltech Locations: Cape Canaveral , Florida, Salt Lake City, Houston, Houston , Texas

☆ An amateur astronomer caught one of the brightest fireballs ever seen on Jupiter. Watch the rare video footage.
▼ + stars: | 2023-09-23 | by ( Maiya Focht | Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +4 min

About 14 seconds into the video below, you can see a bright flash appear in Jupiter's southern hemisphere. AdvertisementAdvertisementOne of the brightest, biggest Jupiter fireballs ever recordedKo Arimatsu, an astronomer at Kyoto University, confirmed to The New York Times that there were six reports of this flash on August 28. AdvertisementAdvertisementA fragment of the Shoemaker-Levy 9 comet impacts Jupiter’s night side in 1994. Jupiter is the 'vacuum cleaner of the solar system'As the largest planet in our solar system, by far, Jupiter has a powerful gravity that pulls in comets and asteroids. In fact, Jupiter's appetite for asteroids and comets has earned it the nickname "vacuum cleaner of the solar system," according to NASA.

Persons: Tadao Ohsugi, It's, Arimatsu, Shoemaker, Levy, Peter Vereš, NASA's OSIRIS, NASA's, Leigh Fletcher Organizations: Service, Kyoto University, The New York Times, TNT, NASA, ESA, Space Science Institute, Jupiter, JPL Arimatsu, Center for Astrophysics, Harvard & Smithsonian, NASA's Goddard Space Flight, University of Arizona, University of Leicester, Times Locations: Wall, Silicon, Japan, Boulder, Colo, Siberia

☆ NASA scientists plan to bake, slice, and fire lasers at the asteroid sample from OSIRIS-REx to understand the creation of our solar system
▼ + stars: | 2023-09-23 | by ( Maiya Focht | ) www.businessinsider.com time to read: +4 min

NASA's OSIRIS-REx spacecraft is scheduled to deliver a return capsule with asteroid dust on Sunday. Scientists hope to study the asteroid dust and dirt in every way possible. After nearly three years, NASA's OSIRIS-REx is scheduled to finally deliver the largest asteroid sample ever to the Utah desert at approximately 10:55 a.m. That's right, an asteroid sample is headed for Earth. A rotating mosaic of asteroid Bennu, composed of images captured by NASA's OSIRIS-REx spacecraft over a four-hour period.

Persons: NASA's, REx, Noah Petro, Petro, Dante Lauretta, OSIRIS, Lauretta, NASA's OSIRIS, University of Arizona Lauretta, Lori Glaze, they'll Organizations: Service, Empire, NASA's Goddard Space, NASA, Goddard, University of Arizona, Planetary Science, JPL, Caltech Locations: Utah, Wall, Silicon

☆ NASA scientists calculated the exact date an asteroid could hit Earth with the force of at least 24 nuclear bombs. Thankfully, it's a long way off.
▼ + stars: | 2023-09-22 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +6 min

Asteroid Bennu has a slim chance of hitting our planet on September 24, 2182, NASA said. It would release as much energy as about 24 nuclear bombs, so NASA is keeping a close eye on it. Dust grabbed from the asteroid by NASA's Osiris-Rex spacecraft is due to arrive on Earth on Sunday. NASA scientists are keeping a close eye on asteroid Bennu, a 1,610-foot-wide cosmic object that could smash into our planet. Bennu was photographed under all angles by NASA's Osiris-Rex mission.

Persons: NASA's Osiris, Tsar Bomba, NASA's, — it's, there's, Bennu, Rex Organizations: NASA, Service, Empire, Eiffel, NASA's Goddard Space Flight, University of Arizona NASA, NASA's Goddard Space Locations: Wall, Silicon, Bennu, Chelyabinsk, Russia, Utah

☆ India’s Chandrayaan lunar lander goes to seep
▼ + stars: | 2023-09-07 | by ( Jackie Wattles | ) edition.cnn.com time to read: +8 min

The Chandrayaan-3 spacecraft landed on the lunar surface on August 23. The Chandrayaan-3 lander is captured by NASA's Lunar Reconnaissance Orbiter, which is currently in orbit around the moon. The day after landing, the ISRO confirmed that the Chandryaan-3 lander had successfully deployed the six-wheeled lunar rover that had ridden to the surface tucked inside the spacecraft’s body. pic.twitter.com/1g5gQsgrjM — ISRO (@isro) August 26, 2023Together, the lander, which weighs about 1,700 kilograms (3,748 pounds), and the 26-kilogram (57.3-pound) rover are packed with nearly a dozen scientific instruments. Else, it will forever stay there as India’s lunar ambassador,” the ISRO posted on X.

Persons: Narendra Modi, NASA's, —, Luna, ove Organizations: CNN, Soviet Union, NASA's Goddard Space Flight, Arizona State University, Indian Space Research Organization, ISRO Locations: India, United States, China, Chandryaan, Russia

☆ NASA orbiter spies likely lunar crater from Russia’s Luna 25 crash
▼ + stars: | 2023-09-01 | by ( Ashley Strickland | ) edition.cnn.com time to read: +2 min

CNN —A new crater has appeared on the moon, and it was likely created when Russia’s uncrewed Luna 25 mission crashed into the lunar surface. Images taken by NASA’s Lunar Reconnaissance Orbiter and released by the agency on Thursday reveal the fresh crater. The Luna 25 spacecraft, Russia’s first lunar lander in 47 years, launched on August 10 and was expected to land near the lunar south pole a couple of weeks later. But communication with the spacecraft was disrupted and Roscosmos, Russia’s space agency, reported an “emergency situation” occurred while Luna 25 tried to enter a pre-landing lunar orbit on August 19. The Lunar Reconnaissance Orbiter previously imaged the site in June 2022.

Persons: Russia’s uncrewed Luna, Luna, NASA's, India’s Organizations: CNN, Reconnaissance Orbiter, Roscosmos, Lunar Reconnaissance Orbiter, Reconnaissance, NASA's Goddard Space Flight, Arizona State University, NASA

☆ NASA’s new telescope could spot thousands of exoplanets and hundreds of Earth-size rogue planets
▼ + stars: | 2023-07-27 | by ( Ashley Strickland | ) edition.cnn.com time to read: +8 min

CNN —When NASA’s next-generation space observatory launches in a few years, the Nancy Grace Roman Space Telescope will expand the search for exoplanets as well as rogue planets, or worlds that travel through space without orbiting stars. Understanding these rogue planets could shed more light on the formation, evolution and disruption of planetary systems. This illustration shows what the Nancy Grace Roman Space Telescope will look like in orbit. But rogue planets are likely much smaller. Telescopes like Hubble and the James Webb Space Telescope have enabled astronomers to observe large, glowing gas giant exoplanets called hot Jupiters.

Persons: NASA’s, Nancy Grace, Nancy Grace Roman, NASA's, —, ”, David Bennett, Microlensing, Takahiro Sumi, “, Naoki Koshimoto, ” Sumi, Hubble, Vanessa Bailey, Roman’s, James Webb, Bailey, coronagraph, “ It’s, ” Bailey Organizations: CNN, Hubble, NASA's Goddard Space, Mount John University Observatory, Goddard Space Flight, Osaka University, Engineers, Jet Propulsion Laboratory Locations: New, Greenbelt , Maryland, Pasadena , California, Webb

☆ NASA's James Webb telescope spotted two stars crashing into each other so violently it could have created gold in space
▼ + stars: | 2023-07-11 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +3 min

The James Webb Space Telescope picked up the blast from two neutron stars colliding. The blast, called a kilonova, created the perfect conditions to make space gold and platinum. The death of two neutron starsAn artist's impressino of a kilonova NASA's Goddard Space Flight Center/CI LabA kilonova happens when two neutron stars — collapsed supermassive stars — gravitate around one another and eventually crash. This particular blast, called GRB 230307A, was first detected by NASA's Fermi Gamma-ray Space Telescope on March 7, 2023, per Space.com. These only arise in very limited circumstances, like when two neutron stars collide.

Persons: James Webb, JWST, Fermi, Gold, Uli Deck, Andrew Levan Organizations: James Webb Space Telescope, Service, James Webb Space, Space Flight, Getty, Radboud University Locations: Wall, Silicon, Netherlands

☆ NASA scientist says there could be microbial life hiding in dark craters on the moon's south pole
▼ + stars: | 2023-06-11 | by ( Jessica Orwig | ) www.businessinsider.com time to read: +3 min

A NASA planetary scientist said conditions on the lunar south pole could be ripe for microbial life. The lunar south pole has craters of ice and possible microbial lifeThe lunar south pole has had lots of attention in recent years because it's where NASA hopes to land its Artemis III astronauts in 2025. NASANo human has ever set foot on the lunar south pole. A map of "cold traps" inside shadowy lunar craters at the moon's south pole (left) and north pole (right). Even if microbes don't exist on the moon right now, they almost certainly will if humans start walking around on its surface.

Persons: —, there's, Prabal Saxena, Space.com, Saxena, he's, Leonard David, radiodurans, Tardigrades, We're Organizations: NASA, Service, Goddard Spaceflight Center, Artemis, International Space

☆ First mission to ‘touch’ the sun catches the solar wind
▼ + stars: | 2023-06-07 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

The slower solar wind, located in the same plane of the solar system as Earth, flows at a calmer 249 miles per second (400 kilometers per second). This flip causes the coronal holes to appear across the sun’s surface and release bursts of solar wind directly toward Earth. JHU Applied Physics Laboratory/NASA's Goddard Space Flight CenterUnderstanding the source of the solar wind can help scientists better predict space weather and solar storms that can affect Earth. Fortunately, Parker Solar Probe and a separate mission, Solar Orbiter, are perfectly poised to observe the sun’s powerful, dynamic forces at play. “There was some consternation at the beginning of the solar probe mission that we’re going to launch this thing right into the quietest, most dull part of the solar cycle,” Bale said.

Persons: Eugene Parker, Parker, ”, James Drake, “ That’s, Stuart D, Bale, ” Parker, ” Bale Organizations: CNN, Parker, Probe, JHU, Physics Laboratory, Space, University of Maryland, College Park, University of California, Orbiter, Parker Solar Probe Locations: Berkeley

☆ NASA's Webb Telescope spots a water plume twice the length of the US, spewing from a Saturn moon that could host alien life
▼ + stars: | 2023-05-31 | by ( Grace Eliza Goodwin | Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +4 min

NASA's Webb Telescope revealed just how giant the water plumes shooting out of a Saturn moon are. The water gushes 6,000 miles, or about twice the length of the US, from the moon called Enceladus. NASA/JPL-Caltech/SSIBut the James Webb Space Telescope is the most powerful observatory ever launched into space. A water vapor plume jetting from the southern pole of Saturn’s moon Enceladus, as captured by NASA’s James Webb Space Telescope. "It was just so shocking to detect a water plume more than 20 times the size of the moon."

Persons: NASA's, —, James Webb, Cassini, Webb, NASA’s James Webb, Geronimo Villanueva, " Villanueva, Leah Hustak, Saturn Organizations: Service, NASA, JPL, Caltech, SSI, NASA’s James Webb Space Telescope, ESA, CSA, Goddard Space Flight Locations: Los Angeles , California, Buenos Aires, Argentina, Angeles, San Francisco

☆ Lasers on Artemis II will share high-definition video of the moon
▼ + stars: | 2023-05-09 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

CNN —When the crewed Artemis II mission makes its lunar flyby in late 2024, we’ll be able to see video of the moon like never before — and it’s all thanks to lasers. Along for the historic journey to the moon will be the Orion Artemis II Optical Communications System, or O2O — making Artemis II the first crewed lunar flight to demonstrate laser communications technology. This illustration depicts the Orion Artemis II Optical Communications System sending a laser signal from the Orion spacecraft to Earth. Lasers will be able to send back more data at a quicker rate across longer distances, such as when Orion is flying by the moon during Artemis II. “We are thrilled by the promise laser communications will offer in the coming years,” says Badri Younes, deputy associate administrator and program manager for space communications and navigation at NASA headquarters in a statement.

WASHINGTON, April 26 (Reuters) - President Joe Biden and South Korean leader Yoon Suk Yeol are expected to agree on Wednesday to deepen collaboration meant to deter nuclear escalation by North Korea amid heightened anxiety about its growing arsenal of missiles and bombs, U.S. officials said. The Republic of Korea is South Korea's official name. The officials stressed that no U.S. nuclear weapons would be returned to the peninsula, and South Korea would continue not to have control over the U.S. nuclear arsenal. South Korea will also reaffirm its commitment to the nuclear non-proliferation treaty and its non-nuclear status, they said. It is only the second state visit Biden has hosted since he took office two years ago - the first such guest was France's president.

☆ I've studied the sun for 23 years. Here's what happened during the last solar maximum and what to expect from this one.
▼ + stars: | 2023-04-25 | by ( Crystal Raypole | ) www.businessinsider.com time to read: +6 min

Solar maximum is a peak in the sun's activity that happens around the middle of each solar cycle. Mathew OwensThe solar maximum represents a peak in solar activity when the sun's magnetic field reaches its strongest and most disordered and dynamic point. NASA/Solar Dynamics ObservatorySolar cycles typically last 11 years, and the solar maximum happens roughly in the middle of each cycle. The sun's magnetic field reaches peak strength during solar maximum, generating an increase in events like solar flares and coronal mass ejections. These bursts are around four times as likely to occur during a solar maximum than a solar minimum.

☆ S.Korea's Yoon to meet Biden as doubts grow over nuclear umbrella
▼ + stars: | 2023-04-24 | by ( Hyonhee Shin | ) www.reuters.com time to read: +4 min

More than 64% supported South Korea developing its own nuclear weapons, with about 33% opposed. Yoon has been pushing to boost South Korea's say in operating the U.S. extended deterrence but exactly what that might entail has not been spelt out. A senior U.S. official said on Friday that Biden, during the summit with Yoon, would pledge "substantial" steps to underscore U.S. commitments to deter a North Korean nuclear attack. South Korea, a major producer of artillery shells, says it has not provided lethal weapons to Ukraine, citing its relations with Russia. South Korea tries to avoid antagonising Russia, due chiefly to business interests and Russian influence over North Korea.

☆ Giant 'holes' dozens of times the size of our planet are appearing on the sun. Here's how they could affect Earth.
▼ + stars: | 2023-03-29 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +11 min

Two huge coronal holes, dozen of times the size of the Earth, have appeared on the sun. These coronal holes can spew solar winds at 1.8 million mph toward our planet, which can cause stunning auroras and disrupt satellites. Coronal holes aren't actually holes in the sunA coronal hole rotates across the face of the sun, streaming solar wind towards Earth, February 1, 2017. Coronal holes happen in the "corona," the atmosphere of the sun, and can only be seen in UV or X-ray light. We could see this month's coronal holes again next monthThe coronal hole came into view as the sun rotated.

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