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☆ New photo from NASA's James Webb Space Telescope reveals the colors of Earendel, the farthest star ever detected
▼ + stars: | 2023-08-15 | by ( Grace Eliza Goodwin | Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +3 min

Earendel was first discovered by the Hubble Space Telescope last year. Webb is 100 times more powerful than Hubble, though, and it captured previously unseen colors of the distant star. Those colors reveal that being the farthest star we've ever detected does not make Earendel lonely — scientists believe it has a companion star beside it. Stars as massive as Earendel do typically have companions, but Hubble was unable to detect one for Earendel. Thanks to the Webb Telescope's powerful infrared vision, though, scientists believe they can see, for the first time, a "cooler, redder companion star" beside Earendel.

Persons: James Webb, Earendel, Coe, Welch, NASA’s, Webb, Hubble, Webb's Organizations: Service, James Webb Space, Hubble, NASA, ESA, CSA, Johns Hopkins University, Space Flight, University of Maryland, College Locations: Wall, Silicon, Earendel

☆ Earth just had its hottest July 'by a long shot,' NASA and NOAA say
▼ + stars: | 2023-08-14 | by ( Denise Chow | ) www.cnbc.com time to read: +4 min

NASA and NOAA together found that last month's average global surface temperature was 2.02 degrees Fahrenheit above the 20th-century average. Last month was also the fourth consecutive month that global ocean surface temperatures hit a record high, the scientists said. This trend in ocean warming carries far-reaching consequences, he said. Changes in ocean temperatures can also have enormous impacts on marine species and their broader ecosystems, he said. This phenomenon is characterized by warm ocean surface temperatures in parts of the Pacific Ocean and tends to boost global temperatures and influence weather conditions around the world.

Persons: Sarah Kapnick, Carlos Del Castillo, Del Castillo, El, Gavin Schmidt, El Niño, Kapnick Organizations: NASA, National Oceanic, Atmospheric Administration, NOAA, Ecology Laboratory, NASA Goddard Space Flight, Northern, NASA Goddard Institute for Space Studies, 533rd, El Locations: Greenbelt , Maryland, New York, El

☆ 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

☆ The sun’s activity is peaking sooner than expected
▼ + stars: | 2023-07-14 | by ( Ashley Strickland | ) edition.cnn.com time to read: +11 min

Every 11 years or so, the sun experiences periods of low and high solar activity, which is associated with the amount of sunspots on its surface. Over the course of a solar cycle, the sun will transition from a calm to an intense and active period. During the peak of activity, called solar maximum, the sun’s magnetic poles flip. A solar activity spikeThe current solar cycle, known as Solar Cycle 25, has been full of activity, more so than expected. The solar storms generated by the sun can affect electric power grids, GPS and aviation, and satellites in low-Earth orbit.

Persons: ”, Mark Miesch, “, Alex Young, ” Miesch, Scott McIntosh, Robert Leamon, Leamon, Miesch, Young, auroras, Bill Murtagh, ” Murtagh, NASA’s Parker, “ We’ve Organizations: CNN, National Oceanic, Prediction, NASA's Solar Dynamics, NASA, SpaceX, Heliophysics, Goddard Space Flight, GPS, National Center for Atmospheric Research, Goddard Planetary Heliophysics, University of Maryland, College Park, American University, Dynamics, Geological Survey, Probe Locations: Boulder , Colorado, Greenbelt , Maryland, Baltimore County, New Mexico , Missouri, North Carolina, California, United States, England, United Kingdom, Alaska, Canada, Iceland, Norway, Scandinavia, Michigan, Upper Midwest, Pacific, Quebec

☆ Webb telescope’s first anniversary image reveals the birth of sunlike stars
▼ + stars: | 2023-07-12 | by ( Ashley Strickland | ) edition.cnn.com time to read: +8 min

CNN —The James Webb Space Telescope has captured a stunning new image of the closest star-forming region to Earth, located 390 light-years away. The release of the image marks the first anniversary since the space observatory began observing the universe. “Webb’s image of Rho Ophiuchi allows us to witness a very brief period in the stellar lifecycle with new clarity. The most powerful telescope ever sent to space, Webb launched on December 25, 2021, and NASA shared its first set of scintillating images on July 12, 2022. Both have served as the targets of other telescopes like the Hubble Space Telescope in the past.

Persons: James Webb, another’s, ”, Klaus Pontoppidan, Webb, “, Bill Nelson, “ Webb, Nicola Fox, Eric Smith, “ Webb’s, Jane Rigby, NASA’s, “ We’ve, we’ve, — Organizations: CNN, Telescope, Telescope Science, NASA, Astrophysics Division, NASA Headquarters, Hubble, NASA’s Goddard Space Flight Locations: Baltimore , Maryland, Greenbelt , Maryland

☆ A Year of Cosmic Wonder With the James Webb Space Telescope
▼ + stars: | 2023-07-12 | by ( Katrina Miller | More About Katrina Miller | ) www.nytimes.com time to read: +1 min

The awe the image inspires is comparable to how researchers feel about the Webb’s first year of science. She finds it fitting that the customary gift for one-year anniversaries is paper, because that’s exactly what researchers using the telescope have been churning out for the past year: scientific papers. When it was ready, the Webb embarked on its journey to peer into the depths of the universe. For Dr. Rigby, one of the most gratifying accomplishments of this past year is the way the mission has delivered on its promise to reveal the earliest moments of cosmic time. Before JWST, astronomers knew of only a small handful of candidate galaxies that existed in the first billion years after the Big Bang.

Persons: ”, Jane Rigby, Webb, Rigby, JWST Organizations: Goddard Space Flight

☆ 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

☆ There's an enormous gravity hole in the middle of the Indian Ocean. Scientists say they've finally worked out what's causing it.
▼ + stars: | 2023-07-07 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +5 min

There's a gravity hole in the Indian Ocean, where ocean levels are about 300 feet lower than surrounding areas. The gravity hole may have been caused by an ancient ocean bed that sank millions of years ago. But a new study suggests researchers should have been looking around, not under, the gravity hole to solve the mystery of how it formed. The blue dot over the Indian Ocean is a gravity 'hole' that has scientists baffled. But scientists have struggled to explain the gravity hole in the Indian Ocean, known as the Indian Ocean geoid low.

Persons: Attreyee Ghosh, Debanjan Pal, Steinberger, Himangshu Paul Organizations: Service, ESA, Research, of Geosciences, NASA, Goddard Space, Indian Institute of Science, National Geophysical Research Institute, New Locations: Bangalore, Africa, Australia, India, Eastern Africa

☆ A gamma-ray explosion that was so bright it blinded scientists' equipment is even weirder than first thought
▼ + stars: | 2023-06-09 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +7 min

Scientists marveled at the power of the gamma-ray jet, which likely marked the birth of a black hole. Astronomers have since been trying to work out what could have made the gamma-ray burst so bright, and may finally have an answer. Researchers have discovered that the gamma-ray explosion ejected a jet with an unusual structure which dragged a large amount of stellar material along with it. The analysis demonstrates that the most extreme explosions do not obey the standard physics assumed for normal gamma-ray bursts, he said. Still, according to O'Connor, this finding "a massive step forward in our understanding of gamma-ray bursts," the "equivalent Rosetta stone of long GRBs."

Persons: marveled, —, Brendan O'Connor, Levan, Gladys Kober, O'Connor, NASA’s, Alexander van der Horst, Hendrik Van Eerten, Eleonora Troja, it's, Van Eerten Organizations: Service, George Washington University, Hubble, NASA, ESA, CSA, Radboud University, NASA’s Goddard Space, University of Bath, University of Rome

☆ 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

☆ Webb telescope spies giant plume on Saturn’s moon Enceladus
▼ + stars: | 2023-06-01 | by ( Ashley Strickland | ) edition.cnn.com time to read: +4 min

CNN —A record-breaking water plume erupted from Saturn’s moon Enceladus, and the James Webb Space Telescope was watching when it occurred. The geyser-like plumes release water vapor, organic chemicals and ice particles into space. But the plume witnessed by the Webb telescope spanned more than 6,000 miles (9,656 kilometers), which is nearly the distance between Los Angeles and Buenos Aires, Argentina, according to a NASA release. The James Webb Space Telescope captured a a water vapor plume jetting from the south pole of Enceladus. The inset image, taken by the Cassini orbiter, shows how small Enceladus appears compared with the water plume.

Persons: James Webb, Cassini, —, Webb, . Villanueva, ”, Geronimo Villanueva, ” Villanueva, “, NASA’s, Stefanie Milam, we’ve Organizations: CNN, NASA, James Webb Space, Cassini, ESA, CSA, Goddard Space Flight, Saturn, Clipper, NASA Goddard Space Flight Locations: Los Angeles, Buenos Aires, Argentina, Greenbelt , Maryland

☆ 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

☆ Webb telescope spots water in rare comet
▼ + stars: | 2023-05-15 | by ( Ashley Strickland | ) edition.cnn.com time to read: +5 min

CNN —Astronomers used the James Webb Space Telescope to observe a rare comet in our solar system, making a long-awaited scientific breakthrough and stumbling across another mystery at the same time. For the first time, water was detected in a main belt comet, or a comet located in the main asteroid belt between the orbits of Mars and Jupiter. The space observatory detected water vapor around Comet Read, which suggests that water ice can be preserved in a warmer part of the solar system. It’s possible that the warmer temperatures of the main asteroid belt cause Comet Read to lose its carbon dioxide over time, the researchers said. Comet Read might have also formed in a warmer pocket of the solar system without carbon dioxide, Kelley said.

☆ 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.

“We need to have tabletop exercises that go through a variety of scenarios, including possibly nuclear weapons,” a senior official told CNN earlier this month. Leaks loomRecent online leaks of Pentagon documents involving South Korea also loom over the visit. One of the leaked documents describes, in remarkable detail, a conversation between two senior South Korean national security officials about concerns by the country’s National Security Council over a US request for ammunition. Plans and pompWednesday’s events mark just the second state visit of the Biden presidency (Biden hosted French President Emmanuel Macron and his wife Brigitte in December 2022). President Joe Biden, first lady Jill Biden, South Korea's President Yoon Suk Yeol and his wife Kim Keon Hee visit the Korean War Veterans Memorial in Washington, Tuesday.

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.

☆ Webb telescope takes striking image of planet Uranus
▼ + stars: | 2023-04-07 | by ( Taylor Nicioli | ) edition.cnn.com time to read: +4 min

CNN —The James Webb Space Telescope has captured a new stunning image of ice giant Uranus, with almost all its faint dusty rings on display. Uranus has 13 known rings, with 11 of them visible in the new Webb image. A November Hubble image of Uranus (left) captured the planet's bright polar cap, while the recent Webb image displayed more detail, with a subtle enhanced brightness at the cap's center. With the exact mechanism behind the haze unknown, scientists are studying the polar cap using telescope images such as this new Webb image. In this new Webb image, similar to other recent images by the Hubble Space Telescope, storm clouds can be seen at the edge of the polar cap.

☆ A powerful 'X-class' solar flare just hit Earth. Forecasters are bracing for more sun activity in the coming days.
▼ + stars: | 2023-03-30 | by ( Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +4 min

The sun blasted Earth with a powerful X-class solar flare on Tuesday, causing radio blackouts. Three more moderate solar flares followed, and we could see more eruptions in the coming days. This may be a precursor to even more solar activity in the coming days. NASA/SDOThat report forecast a chance of more M-class flares in the coming days, with a "slight chance" of another X-class flare on Thursday. More often, though, solar activity triggers energetic displays of Northern Lights, or aurora borealis, sometimes pushing them further south than their normal Arctic occurrence.

☆ 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.

☆ The solar system was hit with a gamma-ray burst so bright, it blinded scientists' equipment in space
▼ + stars: | 2023-03-29 | by ( Chris Panella | Jessica Orwig | ) www.businessinsider.com time to read: +5 min

Our solar system was hit by a gamma-ray burst so bright, it blinded space equipment and telescopes. A gamma-ray burst that recently hit our solar system was so bright, it temporarily blinded gamma-ray instruments in space, according to a NASA release. Scientists say the gamma-ray burst (GRB), the most powerful type of explosion in the universe, was 70 times brighter than any previously recorded event. What is a gamma-ray burst? Because it blinded space instruments, they couldn't accurately record it, so scientists weren't sure how bright the burst was when it first reached our planet.

NASA's Solar Dynamics Observatory captured a video of a tornado churning on the sun. The fiery formation of boiling solar plasma grew to an estimated height of 14 Earths. SDO/NASAThe magnetic structure that caused this tornado is actually a lot bigger than what we're seeing. As these move around the sun, they create magnetic fields that erupt through the solar surface. The sun is getting more activeA video from NASA's Solar Dynamics Observatory shows the massive hole in the sun's atmosphere.

The vernal or spring equinox of 2023 happens Monday, March 20. Technically, two things: Earth's tilted axis and the planet's orbit around the sun. How the spring equinox worksThe Earth orbits the sun once every 365 days and six hours. The spring equinox occurs when the sun's warming rays line up perpendicular to Earth's axial tilt:An illustration of the spring equinox. About 92 days and 19 hours after the spring equinox, the Earth will reach its summer solstice.

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