Bold statement: An extraordinary, ultra-fast wind erupted from the heart of a supermassive black hole, and scientists just watched it form and accelerate in real time. And this is the part most people miss about black holes: they don’t only pull matter in—they can also hurl it back out at unimaginable speeds.
Astronomers have captured what appears to be a groundbreaking event in the active galaxy NGC 3783, using ESA’s XMM-Newton and the XRISM mission—a collaboration between JAXA, ESA, and NASA. Over a ten-day monitoring window, researchers observed the birth and rapid acceleration of an ultrafast outflow from the galaxy’s central black hole, traveling at about 19% of the speed of light (roughly 57,000 kilometers per second).
NGC 3783 is a bright barred spiral galaxy located roughly 135 million light-years away in the Centaurus constellation. It was first identified by John Herschel on April 21, 1835. The galaxy is a prominent member of a group containing 47 galaxies and hosts a swiftly spinning supermassive black hole with a mass around 2.8 million solar masses.
Dr. Liyi Gu of the Space Research Organization Netherlands (SRON) remarks that this is the first time such a rapid wind was observed forming in response to an X-ray flare from a black hole. “For the first time, we’ve witnessed how a sudden burst of X-ray light from a black hole can immediately trigger ultra-fast winds, with these winds developing in just a day,” she explains.
The year-long campaign centered on XRISM captured variations in X-ray brightness, notably in softer X-rays, and an outburst that persisted for about three days within a broader ten-day period. While temporary X-ray flickers are common in supermassive black holes, the simultaneous ejection of gas from the accretion disk—the disk of matter spiraling into the black hole—at such extreme speeds makes this event unique. The ejected material reached velocities up to 57,000 km/s, and the source region lies roughly 50 times the black hole’s radius away from the center.
The scientists attribute this outflow to magnetic reconnection—a sudden reconfiguration of magnetic field lines that liberates substantial energy—drawing a parallel to solar coronal mass ejections but on an astrophysical scale that dwarfs solar events by orders of magnitude. In Gu’s words, this discovery offers a rare opportunity to investigate the launch mechanism behind ultrafast outflows, suggesting that magnetic forces play a central role in accelerating these winds, much like solar phenomena do in our own Sun.
This interpretation challenges the more traditional view that black-hole outflows are primarily driven by radiation pressure or extreme heat. Instead, the new data imply a feedback process: under certain conditions, the black hole not only draws in surrounding matter but can expel it back into the surrounding galaxy. Such feedback mechanisms are thought to influence how galaxies grow and evolve, affecting nearby gas and stars and shaping the larger structure of the universe.
The discovery also highlights the power of international collaboration in space science. XMM-Newton project scientist Dr. Erik Kuulkers notes that focusing on an active supermassive black hole with two leading-edge observatories yielded a finding never seen before: rapid, flare-triggered winds accelerated to ultrafast speeds, bearing resemblance to solar phenomena in a cosmic context.
The team’s findings are detailed in a recent paper published in Astronomy & Astrophysics (December 9, 2025 issue): Delving into the depths of NGC 3783 with XRISM. III. Birth of an ultrafast outflow during a soft flare. A&A 704, A146. DOI: 10.1051/0004-6361/202557189.
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