时间:2025-03-01 00:43:43 来源:网络整理编辑:百科
Scientists found a mysterious radio signal in space that bursts out in a heartbeat-like pattern and
Scientists found a mysterious radio signal in space that bursts out in a heartbeat-like pattern and before you ask, no, it's not aliens. At least that's what they're telling us.
Using the CHIME (Canadian Hydrogen Intensity Mapping Experiment) radio telescope, astronomers noticed a strange FRB, or radio burst, from a far-off galaxy billions of light-years from Earth. The signal lasted up to three seconds, which is exceptionally long for an FRB. The team also detected "bursts of radio waves that repeat every 0.2 seconds in a clear periodic pattern, similar to a beating heart," according to a press release from MIT.
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)
"It was unusual," said Daniele Michilli, a postdoctoral researcherat MIT's Kavli Institute for Astrophysics and Space Research, in the press release. "Not only was it very long, lasting about three seconds, but there were periodic peaks that were remarkably precise, emitting every fraction of a second — boom, boom, boom — like a heartbeat. This is the first time the signal itself is periodic."
But again, not aliens reaching out to us. Apparently. The signal, scientists think, is probably coming from a type of neutron star.
"There are not many things in the universe that emit strictly periodic signals," said Michilli, part of the team that discovered the FRB, to MIT. "Examples that we know of in our own galaxy are radio pulsars and magnetars, which rotate and produce a beamed emission similar to a lighthouse. And we think this new signal could be a magnetar or pulsar on steroids."
Boo. Just once could it please be aliens? But as Miriam Kramer once wrote at Mashable, "It's not aliens. It's never aliens. Stop saying it's aliens."
TopicsNASA
Photos show the Blue Cut fire blazing a path of destruction in California2025-03-01 00:09
陳成達人物誌 :中國足球的旗手 世界足壇的推門人2025-03-01 00:00
比利時前瞻:歐洲紅魔再掀青春風暴 誰能替丁丁?2025-02-28 23:48
12強賽末輪事關阿伊出線 亞足聯統一A組開球時間2025-02-28 23:43
Photos show the Blue Cut fire blazing a path of destruction in California2025-02-28 23:41
沙特主教練:機會很多但沒把握住 球員注意力不集中2025-02-28 23:08
國足平沙特保住亞洲第九位置 末輪若輸阿曼將被對手反超2025-02-28 22:55
直通世界杯亞洲四隊全部產生 伊韓日沙再度攜手征戰決賽圈2025-02-28 22:42
Hiddleswift finally followed each other on Instagram after 3 excruciating days2025-02-28 22:40
梅西回阿根廷秒變無敵!創兩大裏程碑 巴黎好好學2025-02-28 22:23
We asked linguists if Donald Trump speaks like that on purpose2025-03-01 00:18
第五次踢世界杯 ?C羅一步之遙 185次出場曆史第三2025-03-01 00:12
國足的實力差距非換教練就能解決 拚盡全力保住了臉麵2025-03-01 00:09
氣不氣?貝爾回威爾士立刻雙響 轟無解電梯任意球2025-02-28 23:52
U.S. government issues warning on McDonald's recalled wearable devices2025-02-28 23:35
氣不氣?貝爾回威爾士立刻雙響 轟無解電梯任意球2025-02-28 23:25
國足今天下午奔赴馬斯喀特 戰阿曼新人將獲重用2025-02-28 23:24
西班牙前瞻:“鬥牛士”意在練兵 魚腩對手或成靶子2025-02-28 23:17
Mom discovers security cameras hacked, kids' bedroom livestreamed2025-02-28 23:03
奇跡!小卒斬德滅意腳踏8屆世界杯冠軍 定C羅生死2025-02-28 22:14