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☆ A weirdly wobbly 'muon' particle might revolutionize physics by revealing a 5th force of nature or another dimension
▼ + stars: | 2023-08-15 | by ( Sonam Sheth | Jessica Orwig | ) www.businessinsider.com time to read: +5 min

A subatomic particle called the muon is wobbling far more than leading physics models can explain. Its unusual behavior could be evidence of a fifth force of nature or a new dimension. And the reason could be evidence of a new, fifth force of nature. But there are still cosmic wonders we don't understand — mysteries that the discovery of a fifth force of nature may help solve. One possible explanation is that the muons' behavior is dictated by a fifth force of nature.

Persons: Aylin Woodward, Einstein, Rosen, Brendan Casey, Graziano Venanzoni Organizations: Service, Fermi, Accelerator Laboratory, Fermilab, Brookhaven National Lab Locations: Wall, Silicon

☆ Webb telescope captures image of most distant star ever seen
▼ + stars: | 2023-08-11 | by ( Ashley Strickland | ) edition.cnn.com time to read: +3 min

CNN —Astronomers have used the James Webb Space Telescope to observe Earendel, the most distant star ever detected. Earendel is so distant that the starlight glimpsed by the Webb telescope was emitted within the first billion years of the universe. The star’s name derives from Old English words that mean “morning star” or “rising light.” The Hubble Space Telescope first spotted Earendel in 2022. Webb’s observations have revealed new insights about the incredibly distant star. Earendel is a massive B-type star about 1 million times more luminous than our sun and more than twice as hot.

Persons: James Webb, Webb, Earendel Organizations: CNN —, Hubble, NASA, ESA, CSA

☆ Cramer gives his take on Disney's rally and shares pitfalls to avoid in big market moves
▼ + stars: | 2023-08-10 | by ( Julie Coleman | ) www.cnbc.com time to read: +2 min

CNBC's Jim Cramer on Thursday shared common mistakes investors make during big market moves, especially during a rally. If investors do decide to buy, Cramer recommended making limit orders instead of market orders. "Market orders put you at the mercy of an unmerciful market," he said, suggesting investors stick with limit orders to guard against radically overpaying for stocks. Cramer thinks Disney was able to buck the trend in part due to CEO Bob Iger's confidence despite its mixed earnings report. To Cramer, the current market trend is selling off big-cap tech stocks.

Persons: CNBC's Jim Cramer, Cramer, Disney, Bob Iger's Organizations: Dow Jones, Disney

☆ Mars is spinning faster and its days are getting shorter — and scientists aren't sure why
▼ + stars: | 2023-08-09 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +3 min

Measurements from NASAs' InSight Mars Lander have uncovered a new Martian mystery. The red planet seems to be spinning faster, making its days a little shorter every year. The discovery, made using measurements from NASA's Insight lander, has left scientists baffled. While researchers aren't exactly sure what could be causing this landmass shift, a leading theory suggests it could be down to Martian ice. NASA/JPL-CaltechThe latest findings about Mars are the result of years of data gathered from NASA's Insight Lander over 900 Martian days.

Persons: Mars Lander, Sebastien Le Maistre, Bruce Banerdt, I've Organizations: Service, NASA, Royal Observatory of, JPL, Caltech, Malin, Science Systems, NASA's Insight Lander, Jet Propulsion Laboratory Locations: Wall, Silicon, Royal Observatory of Belgium, Southern California

☆ Exiled Wagner mercenaries are training Belarusian troops in what may signal Putin's puppet next door is cutting some of the strings
▼ + stars: | 2023-08-02 | by ( Jake Epstein | Chris Panella | ) www.businessinsider.com time to read: +10 min

Wagner Group mercenaries cast into exile in Belarus have been training the country's soldiers. The increased military training suggests that Putin's influential grip on Belarus may be waning. "The Wagner Group's new role in Belarusian company-level training is notable," the ISW analysis said. Shortly after that, Wagner troops began training internal troops, the Belarusian Deputy Commander of the Internal Troops confirmed on July 25. Lukashenko, meanwhile, has praised the Wagner fighters and welcomed the military training with open arms.

Persons: Wagner, Vladimir Putin, Alexander Lukashenko, Lukashenko, Yevgeny Prigozhin, Prigozhin, Eager, Russian Wagner, ISW, George Barros, Wagner's, Barros, Putin, Belta, John Kirby, We're, Kirby Organizations: Service, Kremlin, Wagner Group, Belarusian Defence Ministry, REUTERS, Russian, Institute for, Belarusian, Sputnik, Internal Troops, Belarus ' Defense Ministry, Special Operations Forces, AP, Moscow, Ukrainian, Minsk, White, National Security, NATO Locations: Belarus, Russia, Wall, Silicon, Belarusian, Asipovichy, Minsk, Russian, Brest, Washington, DC, wean, Moscow, Ukraine, Sochi, Kremlin, Africa, Poland, Lithuania

☆ Uncovering a lost Maya city in the jungle
▼ + stars: | 2023-07-29 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

Once upon a planetShown here are the remains of a building with a staircase that once stood within the ancient city of Ocomtún on the Yucatán Peninsula. Ivan Šprajc/ZRC SAZUA lost Maya city abandoned more than 1,000 years ago has been found in the jungles of Campeche on Mexico’s Yucatán Peninsula. Other worldsThis illustration shows what the Nancy Grace Roman Space Telescope will look like in orbit. These cold, faint worlds are incredibly difficult to detect — but not for the Nancy Grace Roman Space Telescope. Across the universeThe James Webb Space Telescope captured a high-resolution image of Herbig-Haro 46/47, an actively forming pair of stars.

Persons: Indiana Jones, Ivan Šprajc, Juan Carlos Fernandez, Diaz, Fernandez, Nancy Grace, NASA’s, James Webb, Webb, — Carl Sagan’s, Ludwig van Beethoven, —, Ashley Strickland, Katie Hunt Organizations: CNN, “ Raiders, SAZU, University of Houston, Slovenian Academy of Sciences and Arts, Hubble, Telescope, NASA, James Webb Space, DePasquale, ESA, Medical University of Vienna, CNN Space, Science Locations: Ocomtún, Campeche, Mexico’s Yucatán, Vietnam, Southeast Asia

☆ 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

☆ There is a ‘gravity hole’ in the Indian Ocean, and scientists now think they know why
▼ + stars: | 2023-07-24 | by ( Jacopo Prisco | ) edition.cnn.com time to read: +7 min

CNN —There is a “gravity hole” in the Indian Ocean — a spot where Earth’s gravitational pull is weaker, its mass is lower than normal, and the sea level dips by over 328 feet (100 meters). The “gravity hole” in the Indian Ocean — officially called the Indian Ocean geoid low — is the lowest point in that geoid and its biggest gravitational anomaly, forming a circular depression that starts just off India’s southern tip and covers about 1.2 million square miles (3 million square kilometers). In six of the scenarios, a geoid low similar to the one in the Indian Ocean formed. The future of the geoid lowThe geoid low formed around 20 million years ago, according to the team’s calculation. Past research only simulated the descent of cold material across the mantle, rather than including hot rising mantle plumes as well.

Persons: ”, Attreyee Ghosh, Ghosh, Felix Andries Vening Meinesz, hasn’t, ” Ghosh, ” Huw Davies, ” Davies, Alessandro Forte, Forte Organizations: CNN, Indian Institute of Science, Research, Earth Sciences, of Earth, Environmental Sciences, Cardiff University, University of Florida Locations: Bengaluru, India, Dutch, Asia, Gainesville, Réunion, Africa, Eurasia

☆ Peculiar dead white dwarf star has two faces
▼ + stars: | 2023-07-24 | by ( Ashley Strickland | ) edition.cnn.com time to read: +5 min

CNN —Astronomers have made a first-of-its-kind discovery — a white dwarf star with two completely different faces. White dwarfs are burnt remains of dead stars. The newly discovered white dwarf has two sides, one made of hydrogen and the other made of helium. Researchers have nicknamed the star Janus, for the Roman god of transition, which has two faces. “We might have possibly caught one such white dwarf in the act.”As the white dwarf cools over time, the heavier and lighter materials may mix together.

Persons: Janus, ”, Ilaria Caiazzo, Caiazzo, Neil Gehrels, ” Caiazzo, “, K, Miller, James Fuller Organizations: CNN —, California Institute of Technology, Observatory, Gran, Canarias, Keck, Caltech Locations: Canary, Maunakea, Hawaii

☆ The US has no plans to supply the prized long-range Army Tactical Missile System for Ukraine's stuttering counteroffensive, officials say
▼ + stars: | 2023-07-23 | by ( Ella Hopkins | ) www.businessinsider.com time to read: +3 min

US officials say there's been no change in US policy on sending ATACMS, despite Ukraine's pleas. Kyiv has repeatedly called on the US to send the powerful long-range missiles. No major discussions on the issue have taken place for months, officials told The Washington Post. ATACMS not a priority and could escalate the conflictUS resistance to sending ATACMS to Ukraine is partially down to fears that it could trigger Russian escalation of the conflict. It remains concerned that sending enough missiles to Ukraine would deplete the US's limited stock, weakening its response to other potential conflicts, officials told The Post.

Persons: there's, Biden, Biden's, ATACMS, Volodymyr Zelenskyy, Zelensky, Zelenskyy, Andriy Yermak, Storm, Ben Wallace Organizations: Washington, Service, The Washington Post, Army Tactical Missile System, Post, Aspen Security, Forum, Foreign Affairs, UK's Locations: Wall, Silicon, Ukraine, Florida

☆ Rare ‘Trojan’ world may share the same orbit as another planet
▼ + stars: | 2023-07-19 | by ( Ashley Strickland | ) edition.cnn.com time to read: +4 min

CNN —Astronomers may have found a rare “sibling” that shares the same orbit of a Jupiter-like planet around a young star. Two Jupiter-like planets, known as PDS 70b and PDS 70c, are already known to orbit the star. Evidence for Trojans beyond our solar system — specifically Trojan planets — has been sparse until now. The signal suggested a cloud of debris with a mass of about twice that of our moon, which could be a Trojan planet or a planet in formation. A cloud of debris (circled by a yellow dotted line) may be a newly forming planet in the same orbit as the planet PDS 70b.

Persons: ”, Olga Balsalobre, Lucy, “ Exotrojans, Jorge Lillo, Itziar De Gregorio, Monsalvo, “, Ruza, ALMA Organizations: CNN —, Astrophysics, Madrid’s, Astrobiology, IAU, Southern, Science, NASA Locations: ALMA, Chile

☆ Webb telescope captures tantalizing evidence for mysterious 'dark stars'
▼ + stars: | 2023-07-17 | by ( Will Dunham | ) www.reuters.com time to read: +4 min

Dark matter, invisible material whose presence is known mainly based on its gravitational effects at a galactic scale, would be a small but crucial ingredient in dark stars. Based on the Webb data, these objects could be either early galaxies or dark stars, Freese said. Conditions in the early universe may have been conducive to formation of dark stars, with high dark matter densities at the locations of star-forming clouds of hydrogen and helium. Freese and two colleagues first proposed the existence of dark stars in 2008, basing the name on the 1960s Grateful Dead song "Dark Star." And then you can learn about the properties of dark matter particles by studying a variety of dark stars of different masses."

Persons: James Webb, Webb, Katherine Freese, Freese, Cosmin Ilie, Will Dunham, Rosalba O'Brien Organizations: University of Texas, Austin, National Academy of Sciences, Colgate University, Thomson

☆ Return to Office, Recession Fears End Wall Street's Hamptons Work-From-Home Party
▼ + stars: | 2023-07-09 | by ( Linette Lopez | ) www.businessinsider.com time to read: +13 min

It may seem counterintuitive, but the pandemic was like a brief visit to Shangri-La for Wall Street. For the first time in years, Wall Street has to sing for its supper. A return to the office also means a return to more-classic Wall Street social norms. Wall Street, for all its highfalutin personalities and big paydays, is an apprenticeship system. For Wall Street, the heart of the pandemic was a moment to consider what life would be like at a slower, more-nurturing pace.

Persons: You've, Crypto, Dealmaking, Goldman Sachs, me, Seth Klarman, Klarman, Lee Felty, Harrison, Felty, Jim Chanos, Chanos, Jamie Dimon, David Solomon wouldn't, Fenty, Goldman, Solomon, Wall, Young, It's, Al Mare, Topping Rose, Jean, Georges, Maison, Wall Streeter, Linette Lopez Organizations: Wall, JPMorgan, Hamptons, CNBC, Compass, Chanos, East Hampton, Citigroup, Bloomberg, SoHo Locations: New York, East, Manhattan, Long, Stocks, Bridgehampton, It's

☆ James Webb Space Telescope spots a supermassive black hole in the early universe, much sooner after the Big Bang than scientists can explain
▼ + stars: | 2023-07-07 | by ( Morgan Mcfall-Johnsen | Jenny Mcgrath | ) www.businessinsider.com time to read: +5 min

The most distant supermassive black hole seen yet appears as three bright spots clumped together. Webb shows details of the supermassive black hole's size and structureAn artist's conception of the James Webb Space Telescope. NASA GSFC/CIL/Adriana Manrique GutierrezNot only is this mysterious beast the earliest supermassive black hole ever observed, it's also the most distant active supermassive black hole on record. For comparison, a 9 million solar mass black hole is closer to the size of the supermassive black hole at the center of our own galaxy, the Milky Way. The first image of Sagittarius A*, the supermassive black hole at the center of our galaxy.

Persons: —, James Webb, NASA's Webb, Webb, Leah Hustak, Steven Finkelstein, NASA GSFC, Adriana Manrique Gutierrez, it's, Dale Kocevski Organizations: Service, NASA, ESA, CSA, James Webb Space Telescope, Colby College, Bang

☆ Ferocious black holes reveal 'time dilation' in early universe
▼ + stars: | 2023-07-03 | by ( Will Dunham | ) www.reuters.com time to read: +4 min

Scientists made that point anew on Monday in a study that used observations of a ferocious class of black holes called quasars to demonstrate "time dilation" in the early universe, showing how time then passed only about a fifth as quickly as it does today. The observations stretch back to about 12.3 billion years ago, when the universe was roughly a tenth its present age. Quasars - among the brightest objects in the universe - were used as a "clock" in the study to measure time in the deep past. Quasars are tremendously active supermassive black holes millions to billions of times more massive than our sun, usually residing at centers of galaxies. The explosion of individual stars cannot be seen beyond a certain distance away, limiting their use in studying the early universe.

Persons: Albert Einstein, Dr, Geraint Lewis, Lewis, today's, Will Dunham, Rosalba O'Brien Organizations: University of Sydney, Thomson Locations: Australia

☆ Europe's Euclid space telescope set for launch to explore 'dark universe'
▼ + stars: | 2023-07-01 | by ( Steve Gorman | ) www.reuters.com time to read: +5 min

The mission focuses on two foundational components of the dark universe. One is dark matter, the invisible but theoretically influential cosmic scaffolding thought to give shape and texture to the cosmos. Scientists estimate dark energy and dark matter together make up 95% of the cosmos, while ordinary matter that we can see accounts for just 5%. EUROPEAN-LED MISSION[1/2]An artist's concept shows the Euclid space telescope, built by the European Space Agency (ESA) that is set to be launched by a SpaceX Falcon 9 rocket, in operation, in this undated handout image. "Measuring the shapes and positions of galaxies allows us to infer the properties of dark matter and dark energy," Rhodes said on Friday.

Persons: Euclid, Elon Musk, James Webb, Jason Rhodes, Rhodes, Yannick Mellier, Steve Gorman, William Mallard Organizations: SpaceX, European Space Agency, ESA, Cape Canaveral Space Force, Space Agency, REUTERS, NASA, Euclid, Russian Soyuz, Elon, James Webb Space, Jet Propulsion Laboratory, Euclid Consortium, Institut d'Astrophysique de, Thomson Locations: Florida, Cape, U.S, Canada, Japan, Russian, California, Ukraine, Los Angeles, Institut d'Astrophysique de Paris

☆ Ghostly lights paint a new portrait of the Milky Way
▼ + stars: | 2023-07-01 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

Editor’s Note: A version of this story appeared in CNN’s Wonder Theory science newsletter. CNN —The universe is filled with infinite mysteries, and scientists are tackling them, one celestial puzzle at a time. Across the universeAn artist's illustration depicts the Milky Way seen through a neutrino lens, which is shown in blue. National Science FoundationThere is no shortage of scintillating imagery of the Milky Way galaxy — but we’ve never seen it from this perspective. Astronomers used a detector sunk deep into the thick ice of Antarctica to trace “ghost particles” that created a new portrait of the Milky Way.

Persons: James Webb, we’ve, you’ve, exoplanet, Halla, Adam Makarenko, Ashley Strickland, Katie Hunt Organizations: CNN, Virgin Galactic’s, James Webb Space, European Space Agency, . National Science, Schmidt Ocean Institute, Beatles, ”, Keck, —, CNN Space, Science Locations: Antarctica, Costa Rica, Strait, Gibraltar, Spain

☆ An experiment that reaches across the galaxy has 'heard' an invisible sea of ripples in space-time for the first time. It's surprisingly loud.
▼ + stars: | 2023-06-30 | by ( Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +9 min

Those ripples are probably the distant thunder of countless collisions between supermassive black holes, throughout space and time. He predicted that the intense gravity of extremely massive objects, like black holes, warps the fabric of space-time. The NSF funded the 15-year experiment, which is called the North American Nanohertz Observatory for Gravitational Waves (NANOGrav). Supermassive black holes are thought to exist at the center of every galaxy. Her lab runs computer models of merging supermassive black holes to predict how they behave and what signals they send out into space.

Persons: —, Albert Einstein's, Aurore, Sean Jones, Manuela Campanelli, NASA's James Webb, Noll, Kip Thorne, NASA Goddard Thorne, NANOGrav, LIGO, Stephen Taylor, Lorenzo Ennoggi Organizations: Service, Sciences, National Science Foundation, NSF, American Nanohertz, Rochester Institute of Technology, NASA's James Webb Space, Hubble, Telescope, NASA, ESA, Hubble Heritage Locations: Louisiana, Washington, Europe, India, Australia, China

☆ Black Hole at Heart of Our Galaxy Is on Crash Course, Space-Time Ripples Reveal
▼ + stars: | 2023-06-29 | by ( Aylin Woodward | ) www.wsj.com time to read: 1 min

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Persons: Dow Jones

☆ Astronomers ‘hear’ the celestial choir of gravitational waves for the first time
▼ + stars: | 2023-06-29 | by ( Ashley Strickland | ) edition.cnn.com time to read: +7 min

CNN —Astronomers have been able to “hear” the celestial hum of powerful gravitational waves, created by collisions between black holes, echoing across the universe for the first time. Gravitational waves, initially predicted by Albert Einstein in 1916, are ripples in space-time that were first detected in 2015. Einstein theorized that gravitational waves would stretch and compress space as they moved across the universe, affecting how radio waves travel. More than 190 scientists set out to discover the frequencies of gravitational waves as part of the North American Nanohertz Observatory for Gravitational Waves collaboration, also known as NANOGrav. Searching for a celestial choirThe newly detected gravitational waves are the most powerful ever measured.

Persons: Albert Einstein, Einstein, ”, Chiara Mingarelli, We’ve, Simonnet, Scott Ransom, “, ” Ransom, Luke Kelley, ” Kelley, it’s, ” Mingarelli, “ It’s, Stephen Taylor Organizations: CNN —, American Nanohertz, Green Bank, Yale University, National Radio Astronomy, University of California, Vanderbilt University Locations: Arecibo, Puerto Rico, West Virginia, New Mexico, Berkeley, Europe, India, China, Australia

☆ Podcast: French police's controversial powers and the Hollywood strike's impact
▼ + stars: | 2023-06-29 | by ( ) www.reuters.com time to read: +1 min

Over 100 have been arrested in France after riots sparked by the police killing of a teenager of North African descent. We look at the police’s controversial use-of-force powers and why allegations of systemic racism can’t be investigated. The small businesses impacted by the ongoing Hollywood writers’ strike. Visit the Thomson Reuters Privacy Statement for information on our privacy and data protection practices. Further ReadingFrance unrest: Macron calls crisis meeting after second night of riotingExplainer: French police use-of-force powers at road traffic stopsScientists discover that universe is awash in gravitational wavesFrom caterers to cowboy outfitters: Writers' strike hits Hollywood economyWhere are Russian generals Gerasimov and Surovikin after Wagner rebellion?

Persons: Gerasimov, Surovikin, Wagner Organizations: Apple, Google, Reuters, Thomson, Reading, outfitters, Writers Locations: France, North, Reading France

☆ With neutrinos, scientists observe our galaxy in a whole new way
▼ + stars: | 2023-06-29 | by ( Will Dunham | ) www.reuters.com time to read: +5 min

[1/2] An artist's composition of the Milky Way seen with a neutrino lens (blue) is shown in this undated handout image. Scientists said on Thursday they have produced an image of the Milky Way not based on electromagnetic radiation - light - but on ghostly subatomic particles called neutrinos. Neutrinos are produced by the same sources as cosmic rays, the highest-energy particles ever observed, but differ in a key respect. They released an illustration of their findings with neutrinos from the Milky Way represented by light, with a heavy concentration at the galaxy's core. "The most likely source of neutrinos and cosmic rays in our galaxy," Taboada added, "are the remains of past supernova explosions.

Persons: Lily Le, Shawn Johnson, Ignacio Taboada, Francis Halzen, Taboada, Naoko Kurahashi Neilson, Halzen, Will Dunham, Rosalba O'Brien Organizations: . National Science Foundation, REUTERS, Georgia Tech, of Wisconsin, Drexel University, Thomson Locations: REUTERS WASHINGTON, Philadelphia

☆ The Cosmos Is Thrumming With Gravitational Waves, Astronomers Find
▼ + stars: | 2023-06-28 | by ( Katrina Miller | ) www.nytimes.com time to read: +1 min

On Wednesday evening, an international consortium of research collaborations revealed compelling evidence for the existence of a low-pitch hum of gravitational waves reverberating across the universe. “I like to think of it as a choir, or an orchestra,” said Xavier Siemens, a physicist at Oregon State University who is part of the North American Nanohertz Observatory for Gravitational Waves, or NANOGrav, collaboration, which led the effort. Scientists said that, so far, the results were consistent with Albert Einstein’s theory of general relativity, which describes how matter and energy warp space-time to create what we call gravity. “The gravitational-wave background was always going to be the loudest, most obvious thing to find,” said Chiara Mingarelli, an astrophysicist at Yale University and a member of NANOGrav. “This is really just the beginning of a whole new way to observe the universe.”

Persons: ”, Xavier Siemens, Siemens, NANOGrav, Albert Einstein’s, Chiara Mingarelli Organizations: Oregon State University, American Nanohertz, Big Bang, Yale University

☆ Dangerous rip currents cause an average 71 deaths in the US each year. Here's what to do if you get caught in one.
▼ + stars: | 2023-06-28 | by ( Jenny Mcgrath | Kevin Loria | ) www.businessinsider.com time to read: +5 min

Over the past decade in the US, there were, on average, 71 deaths per year due to rip currents, according to the National Weather Service. This year, 11 people died over the course of two weeks due to rip currents along the Gulf Coast, CNN reports. Here's some more advice on how to spot rip currents and swim out if you're caught in one. Rip currents are often mislabeled as rip tides, but unlike tides, they aren't solely caused by the gravitational forces of the moon and sun. How to spot a rip currentIt can be difficult to see a rip current, especially if it's wide.

Persons: —, That's Organizations: Olympic, Service, National Weather Service, Gulf Coast, CNN, Atmospheric Association, NOAA, National Weather, United States Lifesaving Association, Magazine Locations: Gulf, sandbars

☆ Ancient galaxy reveals a surprising way to annihilate a star
▼ + stars: | 2023-06-22 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

The explosion lasted just over a minute — considered long, like any gamma-ray burst, or GRB, that lasts more than two seconds. These violent, destructive bursts can leave behind dense remnants like neutron stars or result in the creation of black holes. Why ancient galaxies could hide star deathsDuring their search for the origin of the gamma-ray burst, astronomers used the Gemini South telescope located in Chile to observe the afterglow of the cosmic explosion. Compared with younger, more typical galaxies, ancient galaxies can have up to a million or more stars densely packed into their cores. But they had no evidence for any long gamma-ray bursts originating from ancient galaxies — until now.

Persons: NASA’s Neil Gehrels, ”, Wen, fai Fong, Andrew Levan, Albert Einstein, Jillian Rastinejad, Fong Organizations: CNN, fai, Northwestern University’s Weinberg College of Arts and Sciences, Radboud University, telltale, Center for Interdisciplinary Exploration, Research, Astrophysics, Northwestern Locations: Nijmegen , Netherlands, Chile, Northwestern

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