A NASA telescope reveals a giant black hole jet like never before

新闻导语

A NASA telescope reveals a giant black hole jet like never before-

Particles blasting from a supermassive black holejet appear to be traveling at nearly the speed of light — much faster than scientists had previously clocked them, according to new research.

While most observations of black holes in spaceare with radio telescopes, a research team used NASA's Chandra X-ray Observatory to study their jets in a new light — literally. What they found with the X-ray telescope was surprising.

"We've shown a new approach to studying jets, and I think there's a lot of interesting work to be done," said David Bogensberger, lead author of the study, in a statement.

SEE ALSO: Scientists found a colossal black hole near the dawn of time Jets blasting out of Centaurus A black hole's accretion disk in opposition directions

Jets blasting out of Centaurus A black hole's accretion disk in opposition directions

In a composite image of the supermassive black hole at the center of the Centaurus A galaxy, jets are seen blasting from the accretion disk in opposite directions. Credit: ESO / WFI / MPIfR / ESO / APEX / A.Weiss et al. / NASA / CXC / CfA /R.Kraft et al.

Black holes were little more than a theory 50 years ago— a kooky mathematical solution to a physics problem — and even astronomers at the top of their field weren't entirely convinced they existed.

Today, not only are supermassive black holes accepted science, they're getting their pictures takenby a collection of enormous, synced-up radio dishes on Earth. Supermassive black holes, millions to billions of times more massive than the sun, are thought to lurk at the center of virtually all large galaxies.

What we know is this: Falling into a black hole is an automatic death sentence. Any cosmic stuff that wanders too close reaches a point of no return. But scientists have observed something weird at the edge of black holes' accretion disks, the ring of rapidly spinning material around the hole, like the swirl of water around a bathtub drain: A tiny amount of that stuff can suddenly get rerouted.

Mashable Light Speed Want more out-of-this world tech, space and science stories? Sign up for Mashable's weekly Light Speed newsletter. By signing up you agree to our Terms of Use and Privacy Policy. Thanks for signing up!

When that happens, high-energy particles can get flung outward as a pair of jets, blasting in opposite directions, though astronomers haven't figured out exactly how they work. Jets give out prominent radio emissions, but have also been observed to be surprisingly bright in X-rays, too.

An artist's rendering of the Chandra X-ray Observatory flying through space with stars and cosmic gas in the background.

NASA's Chandra X-ray Observatory spacecraft launched in 1999. Credit: NASA's Marshall Space Flight Center illustration

So Bogensberger, a postdoctoral fellow at the University of Michigan, decided to look at the black hole at the center of Centaurus A, one of the brightest galaxies in the sky, about 12 million light-years from Earth, in X-rays. For reference, one light-year is nearly 6 trillion miles.

Using data already captured by the space observatory between 2000 and 2022, Bogensberger developed a computer algorithm to track bright lumps within the jets that astronomers call knots. Following knots during a set timeframe is a way to measure the speed.