Combining visible-light Hubble observations with over 14 years of tracking data revealed the distinct shape and composition of the massive cloud nicknamed the "Cat's Tail." The feature had long eluded visible detection because it consists almost entirely of dark, carbon-based organic refractory materials that absorb light. Furthermore, researchers discovered the vast plume is made of porous, fluffy dust grains measuring only about one micron across with substantial empty internal space. These findings confirm the feature likely formed when Pluto-sized worlds violently smashed into each other.
Key points
The Cat's Tail is likely the wreckage of a collision between large, Pluto-sized planetary…: The Cat's Tail is likely the wreckage of a collision between large, Pluto-sized planetary bodies.
Observations of the Beta Pictoris system offer valuable insights into the chaotic early d…: Observations of the Beta Pictoris system offer valuable insights into the chaotic early development of planetary systems like our own.
Combining visible-light observations with previous infrared data allowed researchers to c…: Combining visible-light observations with previous infrared data allowed researchers to confirm the distinct physical composition of the debris.
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- Date:
- November 10, 2026
- Source:
- University of Arizona
- Summary:
- NASA's Hubble Space Telescope has revealed surprising new details about a mysterious, 93-billion-mile-long cloud of dark, fluffy dust that may have formed when massive planetary bodies collided. The discovery challenges previous assumptions about the structure and offers new clues about the violent birth of planetary systems.
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A mysterious structure stretching roughly 93 billion miles across space is giving astronomers new clues about the violent events that shape young planetary systems. Known as the "Cat's Tail," this enormous cloud of dark material lies about 63 light-years from Earth, in the faint constellation Pictor (which is Latin for "painter"). For the past two years, its unusual appearance and uncertain origins have puzzled scientists.
The structure is part of a vast disk of dust and debris surrounding Beta Pictoris, a young star system that resembles our own solar system during its early development. Now, using NASA's Hubble Space Telescope, astronomers have captured previously hidden details of the Cat's Tail in visible light for the first time.
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