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7 mentions found


☆ Planet-forming disk detected around star in another galaxy for the first time
  + stars: | 2023-11-30 | by ( Ashley Strickland | ) edition.cnn.com   time to read: +5 min
CNN —For the first time, astronomers have glimpsed a young star outside the Milky Way galaxy that’s ringed by a dense disk where planets may form. The massive star, called HH 1177, and its rotating disk were spotted in the Large Magellanic Cloud, a neighboring dwarf galaxy that’s about 160,000 light-years away. The gas and dust accumulate in a flat disk around the star, known as an accretion disk, as a result of strong gravitational forces. The Multi Unit Spectroscopic Explorer, or MUSE instrument, on the telescope captured a jet of material releasing from the young star. To discern whether a disk was present around the star, the team needed to measure how quickly dense gas moved around the star.
Persons: ”, Anna McLeod, ” McLeod, McLeod, Jonathan Henshaw, aren’t, “ Organizations: CNN, Durham University, Southern, ESO, Liverpool John Moores University Locations: ALMA, United Kingdom, Chile
☆ Fact Check-Green lights in Hawaii sky came from satellite, predate 2023 fires
  + stars: | 2023-08-24 | by ( Reuters Fact Check | ) www.reuters.com   time to read: +2 min
A night-time video showing streaks of green light in the sky over Hawaii predates the August 2023 wildfires in the U.S. state by several months. The lights were filmed by Japan’s Subaru-Asahi Star Camera in January 2023 and emanate from a Chinese weather satellite launched in April 2022. The 2023 wildfires in Maui, killed over a 100, making it the deadliest wildfire in the U.S. in more than a century, Reuters reported (here). Green lights captured over the night sky in Hawaii in January 2023 predate the August 2023 wildfires. Read more about our work to fact-check social media posts (here).
Persons: Japan’s, DEWs, Read Organizations: Japan’s Subaru, Asahi, “, Office, Reuters, Subaru, of Japan, YouTube, Asahi Shimbun Locations: Hawaii, U.S, Maui, Kea, NAOJ, Dqui
☆ A herd of orphan elephants could be the key to bringing back the woolly mammoth
  + stars: | 2023-07-22 | 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. But a key question is whether such animals could survive if they roamed the Arctic tundra as their ancestors did thousands of years ago. Eventually, the bonded herd will make its way into the wild, where its progress can be monitored for the next decade. Sign up here to receive in your inbox the next edition of Wonder Theory, brought to you by CNN Space and Science writers Ashley Strickland and Katie Hunt. They find wonder in planets beyond our solar system and discoveries from the ancient world.
Persons: paleobiologist Jordan Mallon, It’s, Esme Ashe, Jepson, Katie Jones, J, Robert Oppenheimer, Christopher Nolan’s, “ Oppenheimer, ”, Ashley Strickland, Katie Hunt Organizations: CNN, Canadian Museum of Nature, University of Cambridge, Southern Resident, for Whale Research, Virgin Galactic’s, CNN Space, Science Locations: Botswana, China, Ottawa, Chile, Chicago . Wild, Pacific Northwest, North America
☆ 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
☆ A bright comet is heading towards Earth and could outshine the stars in the sky, say astronomers
  + stars: | 2023-03-07 | by ( Marianne Guenot | ) www.businessinsider.com   time to read: +3 min
The last time the comet visited Earth was around 80,000 years ago, astronomers said. It could be as bright or brighter as our stars, and much more brilliant than the recent ZTF green comet that passed the Earth last month. By comparison, the recent Green Comet ZTF had a brightness of around magnitude +4.6 (the lower the magnitude, the brighter), per space.com. Comet ZTF (C/2022 E3) taken at NAOJ Mitaka Campus on January 31, 2023. On that occasion, we were lucky and the comet only passed our planet, offering spectacular vistas to onlookers.
☆ The Green Comet will be closest to earth on Feb 1. Here's the science behind its ghoulish glow.
  + stars: | 2023-01-31 | by ( Marianne Guenot | ) www.businessinsider.com   time to read: +4 min
A green comet is whizzing past the earth for the first time since the ice age. The green comet, which last passed through the inner solar system about 50,000 years ago, will be at its brightest during this time. Comet ZTF (C/2022 E3) taken at NAOJ Mitaka Campus on January 31, 2023. Another green comet, called ISON, passed Earth in 2013. As it approaches the sun, the heat turns the ice into gas creating an atmosphere around the comet called the coma.
☆ 25 photos of space that could change the way you see our universe and make you feel very small
  + stars: | 2022-11-25 | by ( Morgan Mcfall-Johnsen | ) www.businessinsider.com   time to read: 1 min
Those are just the worlds we know about. According to NASA, on average each star has at least one planet. You can see one orbiting the star in this image. The planet is a tiny dot on the right, within the disc of material surrounding the star. A star surrounded by a circumplanetary disc, with a planet visible on the right, captured by the Atacama Large Millimeter/submillimeter Array.
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