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Search resuls for: "NASA’s Goddard Space Flight"


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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
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
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.
Earth’s protective ozone layer is slowly but noticeably healing at a pace that would fully mend the hole over Antarctica in about 43 years, a new United Nations report says. “In the upper stratosphere and in the ozone hole we see things getting better,” said Paul Newman, co-chair of the scientific assessment. Natural weather patterns in the Antarctic also affect ozone hole levels, which peak in the fall. A third generation of those chemicals, called HFC, was banned a few years ago not because it would eat at the ozone layer but because it is a heat-trapping greenhouse gas. The report also warned that efforts to artificially cool the planet by putting aerosols into the atmosphere to reflect the sunlight would thin the ozone layer by as much as 20% in Antarctica.
CNN —The James Webb Space Telescope has spied one of the earliest galaxies formed after the big bang, about 350 million years after the universe began. Webb’s capability to look deeper into the universe than other telescopes is revealing previously hidden aspects of the universe, including astonishingly distant galaxies such as these two finds. Two distant galaxies were observed by the James Webb Space Telescope. Just a few hundred million years after the big bang, there were already lots of galaxies. Detection of light invisible to the human eyeThe new findings about the two galaxies might mean there are other bright galaxies waiting to be found in the distant universe.
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