时间:2025-11-22 11:31:49 来源:网络整理编辑:百科
The story of space is a story of collisions. Sometimes, a meteor plummets through Earth's atmosphere
The story of space is a story of collisions.
Sometimes, a meteor plummets through Earth's atmosphere and slams into a doghouse. Sometimes stars crash into one another, violently. Other times, two dazzling spiral galaxies collide.
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)
Hawaii's Gemini North telescope, atop the towering volcano Mauna Kea, recently captured a brilliant view of the galaxies NGC 4568 and NGC 4567 before they collide. In the image, the spiraled objects are still largely unaffected as they draw closer to one another; their brilliant centers are some 20,000 light-years apart.
"Those placid conditions, however, will change," the National Science Foundation's National Optical-Infrared Astronomy Research Laboratory (NOIRLab),which operates some major U.S. telescopes, said in a statement.
The merger is imminent.Credit: International Gemini Observatory / NOIRLab / NSF / AURATweet may have been deleted
What happens next?
Over millions of years, the two galaxies will merge together. In fact, since the light from these distant galaxies took about 60 million years to get to us, we know this merger has already begun. But from our vantage point on Earth, their colossal gravitational forces will stoke wild changes as the galaxies distort and produce bounties of new stars, NOIRLab explains. It will be a long, 500-million-year mixing process. The ultimate product, according to intensive galactic observations and computer simulations, will be a single "elliptical galaxy," which can be spherical or perhaps look more like a crushed sphere.
Such mergers of dazzling spiral galaxies are common in the cosmos. Why, it'll even happen to us, too.
"This merger is also a preview of what will happen when the Milky Way and its closest large galactic neighbor the Andromeda Galaxy collide in about 5 billion years," NOIRLab wrote.
Want more science and tech news delivered straight to your inbox? Sign up for Mashable's Top Stories newsletter today.
Dramatic photo captures nun texting friends after Italy earthquake2025-11-22 11:30
Pearl Jam and Tupac among nominees for Rock and Roll Hall of Fame2025-11-22 11:26
Hillary Clinton's email headache just turned back into a migraine2025-11-22 11:21
iMessage hack floods Apple users with Chinese texts2025-11-22 11:09
This 'sh*tpost' bot makes terrible memes so you don't have to2025-11-22 11:07
Stray cat interrupts live Turkish news broadcast, casually sits on anchor's laptop2025-11-22 10:38
Pearl Jam and Tupac among nominees for Rock and Roll Hall of Fame2025-11-22 10:02
Everyone, stop freaking out about this Facebook hoax2025-11-22 09:09
Fiji wins first2025-11-22 09:04
iMessage hack floods Apple users with Chinese texts2025-11-22 08:47
5 people Tim Cook calls for advice on running the biggest company in the world2025-11-22 11:21
Marco Rubio warns Republicans to steer clear of WikiLeaks talk2025-11-22 11:05
Why a LinkedIn executive can't 'snap her fingers' and fix gender diversity in tech2025-11-22 10:36
Disney, LA museum re2025-11-22 10:21
Pokémon Go is so big that it has its own VR porn parody now2025-11-22 09:45
Apple's Nike+ Watch variant to go on sale in India the same day as the US2025-11-22 09:31
Florida fans leave Amy Schumer show after election talk gets too real2025-11-22 09:18
Tigers get summer ready with a new pool and conservation facilities2025-11-22 09:06
Airbnb activates disaster response site for Louisiana flooding2025-11-22 08:55
Man livetweeted his flight sitting next to an emotional support duck2025-11-22 08:53