NASA’s Fermi Links Cosmic Neutrino to Monster Black Hole

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For the first time ever, scientists using NASA’s Fermi Gamma-ray Space Telescope have found the source of a high-energy neutrino from outside our galaxy. This neutrino traveled 3.7 billion years at nearl-light speed before being detected on Earth — farther than any other neutrino for which we know the origin.

High-energy neutrinos are hard-to-catch particles that scientists think are created by the most powerful events in the cosmos, like galaxy mergers and material falling onto supermassive black holes. They travel a whisker shy of the speed of light and rarely interact with other matter, so they can travel unimpeded across billions of light-years.

On Sept. 22, 2017, the IceCube Neutrino Observatory at the South Pole detected signs of a neutrino striking the Antarctic ice with an energy of about 300 trillion electron volts — more than 45 times the energy achievable in the most powerful particle accelerator on Earth. This high energy strongly suggested that the neutrino had to be from beyond our solar system. Backtracking the path through IceCube indicated where in the sky the neutrino came from, and automated alerts notified astronomers around the globe to search this region for flares or outbursts that could be associated with the event.

Data from Fermi’s Large Area Telescope revealed enhanced gamma-ray emission from a well-known active galaxy at the time the neutrino arrived. This active galaxy is a type called a blazar, where a supermassive black hole with millions to billions of times the Sun’s mass blasts particle jets outward in opposite directions at nearly the speed of light. Blazars are especially bright and active because one of these jets happens to point almost directly toward Earth.

Fermi showed that at the time of the neutrino detection, the blazar TXS 0506+056 was the most active it had been in a decade.

The discovery is a giant leap forward in a growing field called multimessenger astronomy, where new cosmic signals like neutrinos and gravitational waves are definitively linked to sources that emit light.

Music: Hidden Tides from Killer Tracks

Credit: NASA’s Goddard Space Flight Center

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TJ Kaz says:

So is it safe to say that a neutrino particle is the only known thing to escape the gravity of a SM black hole? Seems off, I must be missing something. Anyone?.

Black Gold says:

People believe nasa now?? Lol

Yobbo NoProblo says:

Very kool huh? Kooler it happened around this time of year. How cool is it NOW compared to what it's historic 'cool factor,' says about it later? Or it says about is?? Hmmmm. Anyway it was was our way and we saw it!

OrphanPaper says:

noooooo its not

Alien Grey says:

How can you tell a source of ONE neutrino?? I find it quite impossible… I don't believe, it can be done… honestly…

LynxProd says:


Andrew Taylor says:

Congratulations on the major discovery.

z4k says:

Another great video from NASA Goddard. I appreciate the voiced commentary, too… so much better than text-only 🙂

Musabbir Sakib says:

Mind blowing

Рафис Фахрутдинов says:


Gas Mask says:

yet still in the dark about aliens ?

Иван Моргун says:

should I run to my bunker?

Keith Durant says:

So the blue glow of the muon…is that Cherenkov light? Does it mean the particle was actually traveling faster than light through water. (slower than light through space of course)

Idjles Erle says:

What does this say about the speed (and hence mass) of the neutrino?

ives rocher says:

merci, thx <3

shagg says:

I'm always excited to hear news from NASA Goddard!

AR-15 says:

It’s all in theory nothing proven at all “Scientism”

Armando Salgado says:


How cool is that

Nabarup Ghosh says:

I m glad to know that astronomy had acheived such a high degree of perfection!

Nova Shockwave says:

"ICE CUBE Neutrino Observatory" Need more attention among students.

Dhejdkdkd Ebjejdjdjs says:

Could you tell us how long it takes for important information to flow out of NASA? I'm sure it's speed of turtle, not speed of light. As your masters have to vet what the public gets to see. With that in mind, why are you even funded if you're not working in the interest of the public.
Make everything available NOW.

MIKIVELES369 says:

Just…… WOW!

krishna kumar says:

Thanks for this video I am glad to subscribe NASA channel


I'm glad that I clicked the notification button!

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