时间:2026-08-21 22:47:19 来源:网络整理编辑:焦點
Despite vast amounts of space in space, cosmic stuff still bumps, smashes, and sideswipes other cele
Despite vast amounts of space in space, cosmic stuff still bumps, smashes, and sideswipes other celestial objects, with no traffic cops in the sky to tame reckless drivers.
The James Webb Space Telescope, the powerful observatory orbiting the sun about 1 million miles from Earth, has made rubbernecking space impacts that much easier. It recently caught the aftermath of a catastrophic collision on camera. The subject, known as the Cartwheel Galaxy, shows what happened after a smaller galaxy impaled a large spiral galaxy similar in shape to the Milky Way. The shockwaves from the crash kicked up gas and dust and ignited new star-forming hotbeds.
iRobot Roomba Combo i3+ Self-Emptying Robot Vacuum and Mop—$329.99(List Price $599.99)
Samsung Galaxy Tab A9+ 10.9" 64GB Wi-Fi Tablet—$178.99(List Price $219.99)
Apple AirPods Pro 2nd Gen With MagSafe USB-C Charging Case—$189.99(List Price $249.00)
Eero 6 Dual-Band Mesh Wi-Fi 6 System (Router + 2 Extenders)—$149.99(List Price $199.99)
Apple Watch Series 9 (GPS, 41mm, Midnight, S/M, Sports Band)—$299.00(List Price $399.00)
Other telescopes such as Hubble have previously studied the Cartwheel, about 500 million light-years away in the Sculptor constellation, to learn about the collision that reshaped it over billions of years. But much of the galaxy's structure has eluded astronomers because of how much has remained hidden from sight. NASA, the European Space Agency, and the Canadian Space Agency are using the new photo released on Tuesday to demonstrate, yet again, the power of their new telescope.
Left:WebbAugust 2022Credit: NASA / ESA / CSA / STScI / Webb ERO Production TeamRight:HubbleJanuary 2018Credit: ESA / Hubble / NASAWebb, which can see through previously impenetrable space mirk, has upped the ante in the forensic analysis of the Cartwheel Galaxy. Astronomers say they can now see baby stars on its outer edges, new details of the supermassive black hole at its center, and two smaller companion galaxies, along with a deep canvas of distant galaxies upon galaxies upon galaxies.
The Cartwheel has two concentric rings — an uncommon galactic shape found in the universe. The galaxy's bright center features a black hole surrounded by dense gas and hot dust. The most torrid areas host older stars, while the outer rim, expanding over 440 million years, is teeming with young stars and explosive supernovas.
"As this [outer] ring expands, it plows into surrounding gas and triggers star formation."
"As this [outer] ring expands," according to the Space Telescope Science Institute in Baltimore, "it plows into surrounding gas and triggers star formation."
Astronomers are also learning more about what makes up the dust in the galaxy with images from Webb's mid-infrared instrument.Credit: NASA / ESA / CSA / STScI / Webb ERO Production TeamThe telescope's near-infrared camera data are shown in blue, orange, and yellow. The blue dots are individual stars or pockets of star nurseries. This camera also displays the contrasting smooth old star regions and clumpy new star areas.
Tweet may have been deleted
Astronomers are also learning more about what makes up the dust in the galaxy with images from Webb's mid-infrared instrument. The data, colored red, shows regions chock full of hydrocarbons, silica similar to that found on Earth, and other compounds. These chemicals form a framework of spiraling wheel spokes.
Scientists say though the Hubble photo taken four years ago captured the "spokes," too, Webb's picture brings out significantly more detail in them.
TopicsNASA
J.K. Rowling makes 'Harry Potter' joke about Olympics event2026-08-21 22:29
Best Uber deal: Save $10 on a $100 Uber or Uber Eats gift card at Best Buy2026-08-21 22:16
Apple forced to pull Meta's WhatsApp, Threads from China’s App Store. Here’s why.2026-08-21 21:48
Best gaming laptop deal: Get the HP OMEN Transcend 14 for $1,199.992026-08-21 21:45
Nate Parker is finally thinking about the woman who accused him of rape2026-08-21 21:19
Best PlayStation deal: 'Star Wars Jedi: Fallen Order' is on sale for $4.99 — 90% off2026-08-21 20:55
An animated Xbox AI chatbot is in the works2026-08-21 20:36
Intuitive Machines' moon landing succeeds in bold attempt2026-08-21 20:28
Tesla's rumored P100D could make Ludicrous mode even more Ludicrous2026-08-21 20:21
Apple to launch a new, 'mid2026-08-21 20:01
Fyvush Finkel, Emmy winner for 'Picket Fences,' dies at 932026-08-21 22:34
Best headphones deal: The Shokz OpenFit wireless headphones are under $150 at Amazon2026-08-21 22:25
6 White Day gifts to make up for your botched Valentine's Day2026-08-21 22:11
Best gaming laptop deal: Get the HP OMEN Transcend 14 for $1,199.992026-08-21 22:04
Daughter gives her 1002026-08-21 21:34
YouTube just got more serious about its ad blocker crackdown2026-08-21 21:22
Taylor Swift, please delete your ex's location2026-08-21 21:18
Why Zendaya says you gotta see 'Challengers' twice 2026-08-21 21:12
Fake news reports from the Newseum are infinitely better than actual news2026-08-21 20:45
iOS 17.4 update is here: 5 new features coming to your iPhone2026-08-21 20:25