时间:2025-04-02 10:46:52 来源:网络整理编辑:綜合
The mass of the biggest black holes is unimaginable.Even a small black hole is extraordinarily dense
The mass of the biggest black holes is unimaginable.
Even a small black hole is extraordinarily dense and massive. If Earth was (hypothetically) crushed into a black hole, it would be under an inch across. Yet there are black holes in the universe bigger than our solar system, and bigger than the giant Andromeda galaxy.
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—$199.00(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)
The NASA video below, recently released by the agency's Goddard Space Flight Center Conceptual Image Lab, shows the gargantuan size and mass of these fascinating cosmic objects. The more mass an object has, the stronger its gravitational pull. Black holes are so massive that not even light can escape.
This "new NASA animation highlights the 'super' in supermassive black holes," NASA writes. "These monsters lurk in the centers of most big galaxies, including our own Milky Way, and contain between 100,000 and tens of billions of times more mass than our Sun."
SEE ALSO:There's a black hole pointed at Earth. You're not in danger.In just over 90 seconds, the animation will give you a tour of 10 black holes of increasing size.
When we see actual (and profoundly rare) images of black holes, or artistic conceptions of black holes, we don't see the lightless black hole itself, but we can see the immensely hot dust and gas rapidly spinning around the object, called an "accretion disk." Some of this material inevitably falls into the black hole, never to return; much it gets spewed back out into the cosmos, because black holes aren't efficient consumers of galactic material.
Want more scienceand tech news delivered straight to your inbox? Sign up for Mashable's Top Stories newslettertoday.
"Black holes are terrible at eating things. They are notoriously picky eaters," Douglas Gobeille, an astrophysicist and black hole researcher at the University of Rhode Island, told Mashable last year.
"Black holes are terrible at eating things."
One of the first black holes in the comparison video is Sagittarius A*, the black hole at the center of our Milky Way galaxy. It's as massive as some 4.3 million suns. The video ends with TON 618, which carries the weight of over 60 billionsolar masses.
While black holes can be extremely massive and powerful, there's no reason to fear them, especially the far-off black holes in other far-off galaxies.
"We tend to anthropomorphize these things," astrophysicist Misty Bentz told Mashable following the first image ever taken of a black hole. "But really, black holes aren’t evil, mean, or scary. They just… are."
TopicsNASA
Michael Phelps says goodbye to the pool with Olympic gold2025-04-02 10:25
英超最新積分戰報熱刺追上曼城回前3紐卡3連平將曼聯擠出前72025-04-02 09:47
中超最佳陣容 :申花防線三人組領銜 三鎮泰山各兩將2025-04-02 09:33
16次成功過人!梅西本賽季過人數排名五大聯賽第一2025-04-02 09:22
Dramatic photo captures nun texting friends after Italy earthquake2025-04-02 09:19
足球報 :國安新帥門佐是克魯伊夫忠實信徒,下輪踢浙江隊將首秀2025-04-02 08:53
維尼修斯近38場聯賽打進19球 ,五大聯賽同期巴西球員並列最多2025-04-02 08:49
五大聯賽最新積分榜 :阿森納、皇馬全勝登頂 ,意甲前六同積7分2025-04-02 08:38
Teacher absolutely nails it with new homework policy2025-04-02 08:12
萊萬全場數據 :5次射門打入2球+兩中框,3次過人2025-04-02 08:01
The U.S. will no longer have the final say on internet domain names2025-04-02 10:23
萊萬連場雙響 登貝萊助攻雙響 巴薩42025-04-02 10:17
維拉開局1勝3負暫排第15位 ,9月還將對陣阿森納與曼城2025-04-02 10:15
維尼修斯近7場比賽就打進6球,其加盟皇馬之初57場比賽隻有6球2025-04-02 10:09
Pole vaulter claims his penis is not to blame2025-04-02 09:50
姆總牛皮!單場浪射9腳媲美C羅 ,評分全隊最低,無視梅西空位良機,皇馬笑死 !2025-04-02 09:45
英超四輪過後,布萊頓高居第四,力壓利物浦 、曼聯和切爾西2025-04-02 09:03
孫興慜四輪後還沒進球!理查利森助攻凱恩,威脅孫興慜首發位置2025-04-02 08:53
Twitter grants everyone access to quality filter for tweet notifications2025-04-02 08:46
莫德裏奇被換下,西班牙人球迷為他獻上掌聲2025-04-02 08:27