时间:2025-07-01 06:04:15 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
One of the most controversial power struggles in media comes to a close2025-07-01 05:50
Bumbling Trump adviser Kris Kobach's secret plan for America, revealed2025-07-01 05:44
Bumbling Trump adviser Kris Kobach's secret plan for America, revealed2025-07-01 04:51
Donald Trump cancels, then uncancels, meeting with the 'not nice' New York Times2025-07-01 04:46
'The Flying Bum' aircraft crashes during second test flight2025-07-01 04:27
Rare 'thunderstorm asthma' event take five lives in Australian city2025-07-01 03:56
Chance the Rapper sends love to Kanye West after hospitalization2025-07-01 03:53
Donald Trump cancels, then uncancels, meeting with the 'not nice' New York Times2025-07-01 03:38
Teacher absolutely nails it with new homework policy2025-07-01 03:33
This mannequin challenge is probably the most important one yet2025-07-01 03:18
This coloring book is here for all your relationship goals2025-07-01 05:58
Star Wars is political, and it always has been2025-07-01 05:52
Star Wars is political, and it always has been2025-07-01 05:35
Chance the Rapper sends love to Kanye West after hospitalization2025-07-01 05:19
Satisfy your Olympics withdrawals with Nike's latest app2025-07-01 05:04
'Bleak' — Most students have trouble identifying fake news, Stanford study finds2025-07-01 05:00
This mannequin challenge is probably the most important one yet2025-07-01 04:40
Can't go home for Thanksgiving? Here are 11 stock photos you can argue with2025-07-01 04:13
Pole vaulter claims his penis is not to blame2025-07-01 03:58
Rare 'thunderstorm asthma' event take five lives in Australian city2025-07-01 03:48