A massive, dark cosmic structure stretching 93 billion miles across space has been captured in visible light for the first time by NASA’s Hubble Space Telescope.
Known as the “Cat’s Tail,” the enormous cloud lies about 63 light-years from Earth in the constellation Pictor. The structure is part of the vast debris disk surrounding the young star system Beta Pictoris.
Researchers combine the new Hubble images with observations spanning over 14 years to study the feature. Led by University of Arizona doctoral student Arin Avsar, the research team published their findings in The Astrophysical Journal Letters on October 7, 2026.
The Cat’s Tail is thought to be the aftermath of a collision between large bodies – think something like Pluto,
Avsar, doctoral student at the University of Arizona’s Lunar and Planetary Laboratory and Steward Observatory
The system resembles our own solar system during its early development. Astronomers study Beta Pictoris to observe processes that occurred in our cosmic neighborhood billions of years ago.
Previously, the Cat’s Tail had only been detected in infrared light by the James Webb Space Telescope. Visible-light telescopes struggled to spot it because of its chemical makeup.
Oddly, this feature had previously only been seen with the James Webb Space Telescope, which detects infrared light, but remained invisible at shorter wavelengths, which has puzzled the community for a while,
Arin Avsar
The structure consists almost entirely of heavily carbon-based organic refractory material. These long carbon chains absorb visible light, rendering the dust exceptionally black.
We think the Cat’s Tail has eluded our observations in visible light until now because of what it’s made of,
Avsar
Individual dust grains measure roughly a micron across. Despite their tiny size, the particles are remarkably porous and fluffy.
Using computer modeling alongside Hubble and Webb observations, the research team reevaluated the shape of the dust cloud. The analysis challenges previous assumptions about the tail’s three-dimensional arrangement.
We find that instead of extending for 1,000 astronomical units behind the star, the Cat’s Tail may extend straight sideways relative to us, and there is no third dimension to it,
Avsar
Observations also revealed a previously unseen warp in the dust halo surrounding Beta Pictoris. Researchers attribute this distortion to the gravitational influence of Beta Pictoris b, a gas giant planet in the system.
This gives us another line of evidence into how giant planets influence comets through their immense gravitational force,
Avsar
Earlier coverage: Astronomers Discover Double Ring of Planetary Wreckage Around Dead Star
