Skip to main content

Trippy NASA video shows two black holes interacting

The Doubly Warped World of Binary Black Holes

Black holes are so dense that their gravity pulls in everything around them, even light. But that doesn’t mean that they are invisible to view. They collect clouds of dust and gas which form a structure around the black hole called an accretion disk, from which matter is pulled into the black hole over time. These accretion disks give off light and form the distinctive humped appearance made famous by movies like Interstellar.

Recommended Videos

Now, NASA has created a visualization, shared in the video above, showing what happens when two of these black holes pass one another, demonstrating how the gravity of each warps the accretion disk of the other. The larger black hole, equivalent to 200 times the mass of the sun, is shown in orange, and the smaller black hole is shown in blue. The effect of the extreme gravitational forces creates unexpected and twisted warping of the disks.

In this frame from the new visualization, a supermassive black hole weighing 200 million solar masses lies in the foreground. Its gravity distorts light from the accretion disk of a smaller companion black hole almost directly behind it, creating this surreal view. Different colors for the accretion disks make it easier to track the contributions of each one.
In this frame from the new visualization, a supermassive black hole weighing 200 million solar masses lies in the foreground. Its gravity distorts light from the accretion disk of a smaller companion black hole almost directly behind it, creating this surreal view. Different colors for the accretion disks make it easier to track the contributions of each one. NASA’s Goddard Space Flight Center/Jeremy Schnittman and Brian P. Powell

In reality, most of the light emitted in this situation would be in the ultraviolet range, rather than the visible light range. But it is accurate that material orbiting a smaller black hole would experience more intense gravitational forces, which would make it hotter. And hotter material gives off light which is shifted toward the blue end of the spectrum.

The visualization isn’t just for fun though. Simulations like this one are used to investigate what features astronomers could expect to see when observing real black holes.

“We’re seeing two supermassive black holes, a larger one with 200 million solar masses and a smaller companion weighing half as much,” said Jeremy Schnittman, an astrophysicist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, who created the visualization, in a statement. “These are the kinds of black hole binary systems where we think both members could maintain accretion disks lasting millions of years.”

This visualization shows a phenomenon called gravitational lensing, in which a massive body distorts the image of a body behind it. A similar method can be used to investigate distant stars and to identify exoplanets.

“A striking aspect of this new visualization is the self-similar nature of the images produced by gravitational lensing,” Schnittman explained. “Zooming into each black hole reveals multiple, increasingly distorted images of its partner.”

Georgina Torbet
Georgina has been the space writer at Digital Trends space writer for six years, covering human space exploration, planetary…
NASA astronaut lands back on Earth on his 70th birthday
A Soyuz spacecraft containing NASA's Don Pettit and two cosmonauts on its way back to Earth in April 2025.

Following a seven-month stay aboard the International Space Station (ISS), NASA astronaut Don Pettit and two Russian cosmonauts landed safely in Kazakhstan aboard a Soyuz spacecraft on Sunday local time. The touchdown was on the same day that Pettit, NASA’s oldest serving astronaut, turned 70.

The American astronaut departed the ISS on Friday with Aleksey Ovchinin and Ivan Vagner. 

Read more
NASA astronaut hopes for smooth ride home after his wild ride 22 years ago
NASA astronaut Don Pettit.

NASA astronaut Don Pettit is just a couple of days away from returning to Earth on a Russian Soyuz spacecraft after a seven-month stay at the International Space Station, making it the perfect time to revisit his astonishing account of his first Soyuz homecoming in 2003.

In the article, Pettit describes in vivid detail the extraordinary experience of hurtling through Earth’s atmosphere at five miles a second, and how malfunctions with Soyuz led to the flight home becoming a kind of test landing for a future crewed mission to Mars.

Read more
Trippy time-lapse shows Starlink satellites streak light across space
Starlink satellites as seen from the space station.

NASA astronaut Don Pettit has shared a new time-lapse video showing some of SpaceX’s Starlink satellites streaking across space.

Other lines of light appearing in the 18-second clip captured from the International Space Station (ISS) include city lights on Earth 250 miles below, and those of distant stars.

Read more