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Four years after the radio telescope at the Arecibo Observatory in Puerto Rico collapsed, a report from the National Academies of Sciences, Engineering and Medicine is shining a light on the unprecedented failures that caused its destruction. The zinc gradually lost its hold on the cables suspending the telescope’s main platform over the reflector dish. The telescope was built in the 1960s with money from the Defense Department amid a push to develop anti-ballistic missile defenses. Following a few other cable failures, the federal agency decided to begin a plan to decommission the telescope in November 2020. In 2022, the National Science Foundation said it would not rebuild Puerto Rico's renowned radio telescope.

Persons: Roger L, McCarthy Organizations: Arecibo, National Academies of Sciences, Engineering, Medicine, University of Central, National Science Foundation, Arecibo Observatory, Defense Department Locations: Puerto Rico, University of Central Florida, Puerto

☆ Voyager 2’s defining Uranus flyby may have been skewed by a rare cosmic event
▼ + stars: | 2024-11-11 | by ( Ashley Strickland | ) edition.cnn.com time to read: +7 min

Magnetospheres are the protective bubbles around planets like Earth that have magnetic cores and magnetic fields, and they are driven by the planet’s magnetic field. Voyager 2’s data showed that Uranus’ magnetosphere was home to unexpectedly powerful electron radiation belts. Voyager 2’s observations of Uranus’ magnetosphere defied the way astronomers understand how magnetic fields trap energetic particles and their radiation. The first panel (left) of this artist's concept depicts how Uranus' protective magnetosphere behaved prior to Voyager 2's flyby. Fortunately, sending a dedicated mission to study Uranus in the future has become a priority for NASA, according to a report released in 2022.

Persons: ”, Jamie Jasinski, ” Jasinski, It’s, Linda Spilker, Spilker, ” Spilker, James Webb Organizations: CNN, Jet Propulsion Laboratory, NASA, JPL, Caltech, Orbiter, Probe Locations: Pasadena , California

☆ Alien-like signal from 2023 has been decoded. The next step is to figure out what it means
▼ + stars: | 2024-11-11 | by ( Taylor Nicioli | ) edition.cnn.com time to read: +8 min

CNN —If Earth’s astronomical observatories were to pick up a signal from outer space, it would require an all-hands-on-deck effort to untangle and decipher the extraterrestrial message. The message, decoded by Ken Chaffin and daughter Keli, is not static but is in motion as the white dots are arranged into the five amino acids. The message is not static but is in motion and only displays the arrangement for about one-tenth of a second. The project’s designers confirmed that amino acids are the intended message, but they are leaving the interpretation open. The project team intentionally created a complex message, with some team members predicting it could take weeks or even years to be decoded.

Persons: Ken Chaffin, Keli, Ken Chaffin Ken Chaffin, Daniela de Paulis, Baruch Blumberg, Robert C, ”, “, Chaffin, Keli Chaffin, de Paulis, Paulis, they’re, ’, ” Keli Chaffin Organizations: CNN, SETI Institute, European Space Agency, Green Bank, Allen, Byrd Green Bank Telescope, Medicina Locations: View , California, Astrobiology, West Virginia, Mars, Northern California, Bologna, Italy

☆ Ancient DNA reveals surprises about bodies found together in Pompeii
▼ + stars: | 2024-11-09 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

Over time, Pompeii was forgotten, and it wasn’t until centuries later that excavations unearthed evidence of the tragic event. Archaeological Park of PompeiiAncient DNA sequenced from bone fragments preserved within the plaster casts at the Pompeii site has upended some long-held assumptions about bodies found together. Other worldsAstronomers have been searching the Kuiper Belt on the edge of our solar system for a hidden ninth planet for more than a decade. CNN/Adobe StockFor years, astronomers have searched the edge of our solar system for evidence of an unseen world called Planet Nine. They find wonder in planets beyond our solar system and discoveries from the ancient world.

Persons: Giuseppe Fiorelli, “, ” Aaron Fowler, Lady Chenet, embalmers, Ashley Strickland, Katie Hunt, Jackie Wattles Organizations: CNN, Australian Broadcasting Corp . Local, Chicago’s Field, Adobe, NASA, CNN Space, Science Locations: Beach, Denmark, Western Australia, Antarctica, Colombia, Poland

☆ Planet 9: Inside the search for a hidden planet in our solar system
▼ + stars: | 2024-11-04 | by ( Jacopo Prisco | ) edition.cnn.com time to read: +18 min

“It could completely reshape our understanding of the solar system and of other planetary systems, and how we fit into that context. Brown and his colleague, planetary scientist Konstantin Batygin, reported having strong evidence of a hidden planet on the fringes of our solar system. “If you look at these bodies, their lifetimes are tiny compared to the age of the solar system,” Batygin said. “By now, we expected to have found many more of these extreme trans-Neptunian objects,” Sheppard said in an email. Finding a smaller planet would also spark excitement, Rice added, because every solar system planet is immensely useful for extrapolating information about the thousands of comparable exoplanets that researchers are uncovering across the galaxy.

Persons: Mike Brown, Pluto, ”, Brown, Pluto’s, Malena Rice, ” Rice, Konstantin Batygin, Neptune, they’ve, Brown’s, “, we’re, Scott Sheppard, Chadwick Trujillo, Trujillo, ” Brown, Batygin, ” Batygin, Patryk Sofia Lykawka, ” Lykawka, Lykawka, Rice, Hur, Renu Malhotra, Malhotra, Sheppard, ” Sheppard, ” Malhotra, she’s, “ It’s, Sigurd Naess, ” Naess, Vera C, Rubin, That’s Organizations: CNN, Caltech, NASA, Johns Hopkins University Applied Physics Laboratory, Research, International Astronomical, ESA, Yale University, Getty, California Institute of Technology, Planet Nine, Carnegie Institution for Science, Northern Arizona University, Sheppard, Kindai University, Rice of Yale University, University of Arizona, Survey Telescope, Theoretical Astrophysics, University of Oslo, US National Science Foundation, Stanford University, Rubin, Rubin Observatory, Nine Locations: Pasadena , California, AFP, Washington ,, Japan, Neptune, Hawaii, Chile, Norway

☆ Snow in Hawaii? Cold air and moisture deliver snow to the state’s tallest mountain
▼ + stars: | 2024-10-31 | by ( Https | Media-Cldnry.S-Nbcnews.Com Image Upload Newscms Ap-Live-Blog-Byline-Image.Png | The Associated Press | ) www.nbcnews.com time to read: +1 min

HONOLULU — Snow fell on Hawaii’s tallest peak this week, briefly turning the mountaintop into a winter wonderland. The summit area of Mauna Kea on the Big Island got about 2 inches of white powder. But it’s not unusual for snow to fall at the higher elevations on Mauna Kea during the wetter, winter months. “Combination of cold temperatures and moisture equals snow when it’s below freezing,” Ballard said. Centuries-old stories say Mauna Kea is the first-born son of the sky father and earth mother.

Persons: Snow, Maureen Ballard, ” Ballard, Webcams Organizations: National Weather Service, “, Hawaii Telescope Locations: HONOLULU, Mauna Kea, Hawaii, Honolulu, Canada, France, Mauna Kea’s, Kea

☆ ‘Halloween comet’ did not survive its flyby of the sun, NASA says
▼ + stars: | 2024-10-30 | by ( Taylor Nicioli | ) edition.cnn.com time to read: +5 min

C/2024 S1 was a sungrazer, a comet that passes within a distance of about 850,000 miles (1,367,942 kilometers) from the sun. “Comets are really hard to predict, and sungrazing comets like this are even harder than most. NASA“Statistically, it’s extremely rare for sungrazing comets to survive (as they fly) past the Sun,” Battams told CNN in an email. A handful of larger sungrazing comets have been observed surviving their close pass by the sun, such as comet C/2011 W3 Lovejoy in 2011. However, any debris from C/2023 Tsuchinshan–ATLAS or C/2024 S1 will not pass near enough to Earth to produce a meteor shower, Cooke said.

Persons: ”, Karl Battams, NASA “, ” Battams, Lovejoy, William Cooke, Battams, Cooke, “ I’m Organizations: CNN, European Space Agency, NASA, Comets, Naval Research Laboratory, Lovejoy, Astronomers Locations: Hawaii, Washington ,, Meteoroid

☆ New 3D map reveals strange, glowing filaments surrounding a supernova
▼ + stars: | 2024-10-30 | by ( Ashley Strickland | ) edition.cnn.com time to read: +8 min

In this case, filaments radiate away from a “zombie star” the explosion created. Then, in 2023, astronomers spied weird filaments glowing with light from sulfur within the nebula. Scientists know the supernova created the filaments, but it’s unclear how or when the structures formed. The robust data that the instrument captured allowed the team to measure the motions of each filament and create a 3D map. The Keck Cosmic Web Imager enabled measurements of the velocity of any material within the nebula that emits light.

Persons: ”, Christopher Martin, “ KCWI, Dana Patchick, Patchick, NASA’s, Albert Zijlstra, Ilaria Caiazzo, Tim Cunningham, Zijlstra, Cunningham, ” Cunningham, James Webb, Takatoshi Ko, Ko Organizations: CNN, Keck, California Institute of Technology, Survey, University of Manchester, Pa, Institute of Science, Technology, NASA Hubble, Center, Astrophysics | Harvard & Smithsonian, Southern, Research Center, University of Tokyo Locations: Hawaii, England, Technology Austria

☆ Groundbreaking telescope reveals first piece of new cosmic map
▼ + stars: | 2024-10-26 | by ( Jackie Wattles | ) edition.cnn.com time to read: +7 min

Astronomers have never detected dark matter, but they believe it makes up about 85% of the total matter in the universe. Meanwhile, the existence of dark energy helps researchers explain why the universe is expanding — and why that expansion is speeding up. A prime example is the European Space Agency’s wide-angle Euclid telescope that launched in 2023 to investigate the riddles of dark energy and dark matter. Euclid this week delivered the first piece of a cosmic map — containing about 100 million stars and galaxies — that will take six years to create. These stunning 3D observations may help scientists see how dark matter warps light and curves space across galaxies.

Persons: Jackie Wattles, I’m, Vera C, Sarah Gillis, John Kraus, Chenyang Cai, Everest, NASA hasn’t, gazers, Ashley Strickland, Katie Hunt Organizations: CNN, ESA, US National Science Foundation, Stanford University, Rubin, SpaceX, SpaceX Polaris, Polaris, NASA, Boeing, CNN Space, Science Locations: Chile, Uzbekistan, Norway, Myanmar, Florida

☆ Vera C. Rubin Observatory: World’s largest digital camera will be a ‘game-changer’ for astronomy
▼ + stars: | 2024-10-23 | by ( Jacopo Prisco | ) edition.cnn.com time to read: +11 min

CNN —On a mountaintop in northern Chile, the world’s largest digital camera is preparing to power up. The expectation is that in this way, Vera Rubin will discover about 17 billion stars and 20 billion galaxies that we’ve never seen before — and that’s only the beginning. “We’re anticipating about 10 million alerts per night coming off the telescope,” Higgs says. “The Vera Rubin Observatory will enable astronomers to map the distribution of dark matter like never before, based on how dark matter bends the path of ordinary starlight — a process known as ‘gravitational lensing,’” Kaiser explains. “After all, it was her seminal work on the detection of dark matter in spiral galaxies in the 1970s that got this pursuit going,” says Natarajan.

Persons: Vera C, —, Vera Rubin, “, Rubin, ”, Clare Higgs, Higgs, Charles Simonyi, Bill Gates, it’s, Olivier Bonin, ” Higgs, “ We’re, There’s, David Kaiser, Kaiser, ” Kaiser, Rubin Obs, Konstantin Batygin, Kate Pattle, “ Rubin, Priyamvada Organizations: CNN, Rubin, Department of Energy’s, Science, US National Science Foundation, Accelerator Laboratory, Stanford University in, Accelerator, Survey, Netflix, Massachusetts Institute of Technology, Nine, California Institute of Technology, of Physics, Astronomy, University College London, Yale University Locations: Chile, Cerro Pachón, Chilean, Santiago, Stanford University in California, California

☆ See the first piece of what promises to be the largest 3D map of the universe
▼ + stars: | 2024-10-23 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

One of Euclid’s primary goals is to observe dark matter and dark energy. While dark matter has never been detected, it is believed to make up 85% of the total matter in the universe. Meanwhile, dark energy is a mysterious force thought to play a role in the accelerating expansion of the universe. Rhodes is the US science lead for Euclid and principal investigator for NASA’s Euclid dark energy science team. “The images capture detail from clusters of stars near an individual galaxy to some of the largest structures in the universe.

Persons: ”, Valeria Pettorino, James Webb, Jason Rhodes, Rhodes, Euclid, Georges Lemaître, Edwin Hubble, Mike Seiffert Organizations: CNN, European Space Agency, Southern Hemisphere, ESA, International Astronautical, Jet Propulsion Laboratory, JPL, NASA Locations: Milan, Italy, Pasadena , California

☆ October full hunter’s moon is the closest supermoon in 2024
▼ + stars: | 2024-10-16 | by ( Gina Park | Ashley Strickland | ) edition.cnn.com time to read: +4 min

The closest supermoon of the year will soon loom large and bright in the autumn sky. October’s hunter’s moon is set to peak at its fullest around 7:26 a.m. Many people associate the hunter’s moon with being orange in color as it rises, but the same could be said of all full moons. Why the full moon is called hunter’s moonThe hunter’s moon is the first full moon after the autumnal equinox, which occurred on September 22 this year. The hunter’s moon is expected to be joined by Jupiter, a red giant star called Aldebaran and the star cluster Pleiades, according to EarthSky.

Persons: it’s, Robin L, Shelton, Don’t, • Orionids, Leonids, Geminids, Ursids Organizations: CNN, NASA, University of Georgia, Jupiter, American Meteor Society Locations: Potawatomi, Fort Ouiatenon, West Lafayette , Indiana

☆ Astronomers’ discovery of distant Milky Way-like galaxy challenges our theories of how cosmos evolved
▼ + stars: | 2024-10-16 | by ( Jack Guy | ) edition.cnn.com time to read: +4 min

CNN —Researchers have discovered a distant disc galaxy that has surprisingly similar characteristics to our own Milky Way, and it could change our understanding of how galaxies form. Early galaxies tend to join together and develop smoother shapes incredibly slowly, with our Milky Way taking billions of years to develop tidy structures, the researchers said. The rotation and structure of the galaxy were observed using the Atacama Large Millimeter/submillimeter Array (ALMA) telescope in northern Chile. “Finding further evidence of more evolved structures would be an exciting discovery, as it would be the most distant galaxy with such structures observed to date,” Rowland said. “ALMA also reveals details finer than earlier telescopes.”Blain said more research is needed before scientists change their understanding of galaxy formation.

Persons: Chile Alberto Pena, Jacqueline Hodge, ” Lucie Rowland, ” Rowland, Andrew Blain, “, ” Blain, ALMA, ALMA there’s, ”, “ ALMA, Dave Clements, that’s Organizations: CNN —, Leiden University, Getty, University of Leicester, CNN, Imperial College London, Royal Astronomical Society Locations: Netherlands, Chile, AFP

☆ The year's biggest, brightest supermoon rises this week. Here's the best time to see it at its most brilliant.
▼ + stars: | 2024-10-15 | by ( Jenny Mcgrath | ) www.businessinsider.com time to read: +4 min

AdvertisementThe biggest and brightest supermoon of the year is rising this week. When and where to see October's supermoonA supermoon rises behind a downtown office building in Kansas City, Missouri. While you don't need special equipment to see the supermoon, Ryle suggests checking it out through a telescope, if you can. REUTERS/Yannis BehrakisThis week's moon is the third of four consecutive supermoons this year. What makes this week's moon unique is that perigee and the full moon coincide most closely compared to the other supermoons, making it the biggest and brightest supermoon all year.

Persons: —, Charlie Riedel, Jennifer L, Hoffman, Space.com, Wes Ryle, Ryle, Yannis Behrakis Organizations: Service, NASA, Cincinnati Observatory, Farmers ' Locations: Kansas City , Missouri, it's, moonrise

☆ New 3D scan resurrects a legendary sunken Antarctic expedition ship
▼ + stars: | 2024-10-12 | by ( Ashley Strickland | ) edition.cnn.com time to read: +7 min

Crews encountered obstacles that entrapped ships or submerged them beneath ice-covered waters, creating an enduring mystique about what went wrong. Ocean secretsThe 3D scan of HMS Endurance makes it appear as though the ship was lifted from the bottom of the ocean. Falklands Heritage Maritime Trust/National GeographicAn awe-inspiring 3D scan has brought the shipwreck of Antarctic explorer Ernest Shackleton’s HMS Endurance, found in 2022, back to life. Meanwhile, a more somber finding gleaned from DNA identified the cannibalized remains of James Fitzjames, captain of the HMS Erebus. Other worldsAstronomers using the Hubble Space Telescope watched the shape of Jupiter's Great Red Spot change over 90 days.

Persons: Crews, Ernest Shackleton’s HMS, Shackleton, James Fitzjames, Sir John Franklin, Fitzjames, Trailblazers, David Baker, Demis Hassabis, John Jumper, John Hopfield, Geoffrey Hinton, Victor Ambros, Gary Ruvkun, Matthew Dominick, John Henry Patterson, Thomas Gnoske, Joseph DePasquale, —, Indiana Jones, ”, Ashley Strickland, Katie Hunt Organizations: CNN, Heritage Maritime Trust, University of Washington, Google, Princeton University, University of Toronto, University of Massachusetts Medical School, Harvard Medical School, NASA, International Space, Space, Chicago’s Field, Hubble, European Space Agency, CNN Space, Science Locations: Antarctica, Weddell, Canada’s Nunavut, London, North America, Europe, Kenya, Civil, Petra, Jordan

☆ Hubble telescope captures Jupiter’s Great Red Spot contracting like a stress ball
▼ + stars: | 2024-10-11 | by ( Ashley Strickland | ) edition.cnn.com time to read: +7 min

CNN —New observations of Jupiter’s Great Red Spot captured by the Hubble Space Telescope show that the 190-year-old storm wiggles like gelatin and shape-shifts like a squeezed stress ball. Although storms are generally considered unstable, the Great Red Spot has persisted for nearly two centuries. Recently, a separate team of astronomers peered into the heart of the Great Red Spot using the James Webb Space Telescope to capture new details in infrared light. The Great Red Spot seems to wiggle like a bowl of gelatin over the 90-day period. NASA/ESA/STScI/Amy SimonThe new Hubble study fills in more pieces of the puzzle about the Great Red Spot, Fletcher said.

Persons: Hubble, it’s, ”, Amy Simon, we’ve, ” Simon, James Webb, Leigh Fletcher, Simon, ” Fletcher, Joseph DePasquale, Mike Wong, “, Wong, Fletcher Organizations: CNN, Hubble, Science, Planetary Sciences, Goddard Space Flight, NASA, ESA, of Geophysical Research, UK’s University of Leicester, University of California Locations: Boise , Idaho, Greenbelt , Maryland, Berkeley

☆ Comet C/2023 A3 Tsuchinshan–ATLAS will soon fly by Earth
▼ + stars: | 2024-10-09 | by ( Ashley Strickland | Taylor Nicioli | ) edition.cnn.com time to read: +5 min

CNN —A recently discovered comet, known as C/2023 A3 Tsuchinshan–ATLAS, will make its closest approach of Earth on Saturday. Sky-gazers won’t want to miss the event since it may be the last time the comet will be seen in the night sky for another 80,000 years. It will just appear to hang there, and it will slowly change position from night to night,” Cooke said. C/2023 A3 Tsuchinshan–ATLAS appears brighter in an image taken by the Virtual Telescope Project three days after the comet reached its perihelion. “For many people, and especially children, seeing a bright comet in the night sky is a beautiful and life-changing experience,” Kareta said.

Persons: CNN —, Gianluca Masi, Bill Cooke, It’s, ” Cooke, ”, Teddy Kareta, Cooke, ” Kareta Organizations: CNN, Southern Hemisphere, Northern Hemisphere, NASA, Telescope, Marshall Space, Lowell, Virtual Telescope, American Meteor Society, Taurids Locations: Italy, Meteoroid, Huntsville , Alabama, South Africa, Flagstaff , Arizona

☆ Next solar eclipse: When and where to view the celestial event
▼ + stars: | 2024-10-03 | by ( Jackie Wattles | Ashley Strickland | ) edition.cnn.com time to read: +4 min

The silvery orb is near or at the farthest point in its orbit from our planet, so it can’t completely block the sun as it does during a total solar eclipse. Another annular solar eclipse will arrive on February 17, 2026. Finally, a total solar eclipse — such as the one that drew millions of spectators across North America last April — will once again grace the skies on August 12, 2026. To witness any of these solar eclipse events, be sure to use certified eclipse glasses or a handheld solar viewer to shield your eyes from the sun’s harmful rays and observe the event safely. But don’t look through any optical device — camera lens, telescope, binoculars — while wearing eclipse glasses or using a handheld solar viewer, according to NASA.

Persons: —, Greg Wood Organizations: CNN, South America, NASA, North America, Getty, New Zealand, Democratic Locations: South, United States, Canada, Greenland, Iceland, Europe, Africa, Oceania, New Zealand, Fiji, Australia, Antarctica, South America, Cove, AFP, Russia, Spain, Portugal, North America, New, Namibia, Botswana, South Africa, Lesotho, Nigeria, Cameroon, Chad, Sudan, Egypt, Saudi Arabia, Iran, Afghanistan, Pakistan, India, China, North Korea, South Korea, Japan, Angola, Democratic Republic of Congo, Uganda, Kenya, Somalia, Malaysia, Indonesia, Brunei, Philippines

☆ October’s ‘ring of fire’ solar eclipse: Time, path and where to see it
▼ + stars: | 2024-10-01 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

If you’re in the path of the partial or annular eclipse and plan to observe either celestial spectacle, make sure you have a pair of certified eclipse glasses or a handheld solar viewer. The eclipse pathThe annular eclipse will begin at 12:50 p.m. A global map shows the path of the annular solar eclipse on October 2. If you don’t have certified eclipse glasses or use a handheld solar viewer to observe the annular eclipse, you can use a telescope, binoculars or camera that has a special solar filter on the front, which acts the same way eclipse glasses would. The small space between will reflect the sun’s crescent during a partial eclipse or a ring during the annular eclipse.

Persons: Kent Nishimura, you’re Organizations: CNN, South America, NASA, Pacific, Atlantic Coast, American Meteor Society, Taurids Locations: South, Pacific, Rapa Nui, Easter, Argentina, Chile, Hawaii, American Samoa, Brazil, Fiji, French Polynesia, Mexico, New Zealand, Pitcairn Islands, Kiribati, Tonga, Uruguay, South Georgia, Falkland, Falkland Islands

☆ How to see Comet A3, which could be the best comet in a decade. Neanderthals walked the Earth last time it flew by.
▼ + stars: | 2024-10-01 | by ( Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +8 min

Comet A3, or Comet Tsuchinshan-ATLAS, is visible in the Northern Hemisphere this October. Comet Tsuchinshan-ATLAS, or Comet A3, is a dusty ball of ice from the Oort Cloud that takes about 80,000 years to orbit the sun. Sergei Grits/AP PhotoAstronomers are divided about whether Comet A3 will shine as bright as Comet NEOWISE. When and where to see Comet A3Weather permitting, everyone in the Northern Hemisphere should be able to see Comet A3 in October. After this, Comet A3 won't return for tens of thousands of years.

Persons: —, Comet, Dan Bartlett, Teddy Kareta, Kareta, Sergei Grits, NEOWISE, Robert Massey, — Bartlett, Comet Holmes, Preston Dyches, that's, you've, Massey Organizations: Service, Lowell Observatory, Night Magazine, Royal Astronomical Society, Sierra, Massey, NASA Locations: Northern, Belarus, Mono Lake , California, that's

☆ Astronomers spot the most massive black hole jets ever observed
▼ + stars: | 2024-09-24 | by ( Ashley Strickland | ) edition.cnn.com time to read: +10 min

CNN —Astronomers have observed a massive pair of jets releasing from a supermassive black hole 7.5 billion light-years from Earth. The megastructure spans 23 million light-years in length, making these black hole jets the largest ever seen, according to new research. Black hole jets can accelerate radiation and particles close to the speed of light, causing them to glow in wavelengths visible to radio telescopes. The massive black hole jets could help answer both. Martijn Oei (pictured), lead author of the new study, and his colleagues will continue their search for massive black hole jets.

Persons: Martijn Oei, ” Oei, Europe’s, Oei, “, Aivin Gast, Gast, LOFAR, “ Aivin, Porphyrion, NASA's, Powell, Nelson, Martin Hardcastle, Sasha Tchekhovskoy, ”, Tchekhovskoy Organizations: CNN —, California Institute of Technology, Astrophysics, University of Oxford, NASA, JPL, Caltech, CNN, Keck, NASA's Goddard, University of Hertfordshire, Northwestern University Locations: India, Hawaii, England

☆ Side-by-side images from the James Webb and Hubble space telescopes show why NASA spent 25 years and $10 billion on the Webb
▼ + stars: | 2024-09-23 | by ( Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +7 min

Read previewNASA's James Webb Space Telescope floored astronomers and spectators across the globe when it released its first full-color images. Even those preliminary snapshots revealed countless stars, galaxies, and fine details that hadn't been seen before. A side-by-side collage of the same area taken by Hubble and the James Webb Space Telescope in its very first image. In the JWST image, you can see galaxies in the background that were invisible to HubbleA few galaxies that are clearly visible in the JWST image, but not the Hubble image. The JWST image also revealed the stellar nurseries created as galaxies mergeThe JWST image shows a region of gas compressed between merging galaxies.

Persons: —, James Webb, Webb, Joseph DePasquale, JWST, hadn't, Eric Smith, Hubble, STScI Webb, Mark McCaughrean, McCaughrean, Amber Straughn, Jane Rigby, we've Organizations: Service, Business, NASA, ESA, CSA, Hubble, James Webb Space, Hubble Heritage, European Space Agency Locations: JWST

☆ Earth is about to have a temporary ‘mini-moon’
▼ + stars: | 2024-09-20 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

But as a mini-moon, Asteroid 2024 PT5 isn’t in any danger of colliding with Earth now or over the next few decades, de la Fuente Marcos said. Asteroid 2020 CD3 is considered a long-capture mini-moon, while the newly detected Asteroid 2024 PT5 is a short-capture one. Short mini-moon events can occur several times per decade, but long mini-moon events are rare, and only occur every 10 or 20 years, de la Fuente Marcos said. “In order to become a mini-moon, an incoming body has to approach Earth slowly at close range,” de la Fuente Marcos said. After 56.6 days, the sun’s gravitational pull will bring Asteroid 2024 PT5 back into its normal orbit.

Persons: PT5, Carlos de la Fuente Marcos, la Fuente Marcos, orbiters, flybys, It’s, ”, Robert Jedicke, ” Jedicke, Jedicke, “ Organizations: CNN, American Astronomical Society, Astronomers, NASA, Complutense University of Madrid, University of Hawaii’s Institute for Astronomy, Gran, Canarias, Telescope Locations: South Africa, Chelyabinsk, Russia, Hiroshima, Japan, Mars, Canary, Earth

☆ SpaceX Polaris Dawn spacewalk: Why it was a historic milestone
▼ + stars: | 2024-09-14 | by ( Jackie Wattles | ) edition.cnn.com time to read: +6 min

CNN —SpaceX’s Polaris Dawn crew is beginning its fifth day in orbit, having marked a few record-setting milestones on a historic journey — including the world’s first commercial spacewalk. Polaris Dawn crew member and SpaceX engineer Sarah Gillis emerges from the SpaceX Crew Dragon capsule during the first commercial spacewalk on Thursday. The Polaris Dawn mission's Crew Dragon capsule is seen Wednesday 870 miles (1,400 kilometers) above Earth — the farthest humans have traveled since the Apollo program over 50 years ago. The riskiest part of the journey may be over, but the Polaris Dawn crew still has a key milestone ahead: coming home. Polaris Dawn mission commander and Shift4 Payments CEO Jared Isaacman is seen anchored to a ladder dubbed the "skywalker" by SpaceX during his spacewalk.

Persons: CNN —, Elon, Jared Isaacman, Scott “ Kidd ” Poteet, Anna Menon, Sarah Gillis —, Gillis, —, Sarah Gillis, Isaacman, Bill Nelson, “, ” Nelson, Van Allen, mission's, Menon, NASA’s, Isaacman — Organizations: CNN, Polaris, NASA, Hubble, Telescope, Space, SpaceX, Elon Musk’s, Shift4, US Air Force, Polaris Program, International Space, Polaris Dawn Locations: United States, U.S, Florida, West, of Florida

☆ See giant gas bubbles move on the surface of a nearby star
▼ + stars: | 2024-09-11 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

CNN —Astronomers have observed the detailed motions of giant gas bubbles on the surface of a nearby star for the first time, which rise and fall like the inside of a lava lamp. The images show the surface of the star R. Doradus, a red giant star 180 light-years away in the Dorado constellation. The telescope enabled them to collect high-resolution images of the star’s surface over the course of a month. Convection bubbles can be seen moving on the surface of R. Doradus, as seen by the ALMA telescope in Chile. While convection bubbles have been spotted before on the surface of stars, the new observations tracked the motion of bubbles in a way that wasn’t possible earlier.

Persons: ”, Wouter Vlemmings, Vlemmings, ‘, ” Vlemmings, Theo Khouri, Chalmers, ALMA, Behzad Bojnordi, Claudia Paladini, Paladini, ” Paladini Organizations: CNN —, Chalmers University of Technology, NASA, Chalmers, Energy, European Southern Observatory, Sun Locations: Sweden, ALMA, Chile

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