US EditionHubble Space Telescope Takes Best Picture yet of Visitor From Another Solar System
SOLAR SYSTEM, AUG 7 – The comet 3I/ATLAS travels at 210,000 km/h, the fastest Solar System visitor ever recorded, with Hubble images helping refine its size to no more than 5.6 kilometers.
- The Hubble Space Telescope captured the interstellar comet 3I/ATLAS on July 21, 2025, and NASA and ESA released the photos Thursday.
- Amid interstellar surveys, the Asteroid Terrestrial-impact Last Alert System in Chile discovered 3I/ATLAS on 1 July 2025 at 675 million kilometres from the Sun, making it the third interstellar object passing through our solar system.
- Setting tighter constraints, Hubble revealed a teardrop-shaped dust plume and a dusty tail streaming away, while limiting the nucleus diameter to 5.6 kilometres or smaller down to 320 metres.
- Building on Hubble's data, astronomers will employ the James Webb Space Telescope to refine the comet's chemical makeup and size estimates.
- With visibility set to wane, 3I/ATLAS should remain observable through September before passing too close to the Sun and reappearing by early December.
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Comet 3I/ATLAS travels through our solar system at the astonishing speed of 209,000 kilometers per hour, the highest speed ever recorded for an object of interstellar origin.
With more than 200,000 per hour, the comet 3I/Atlas rushes past the earth. Thanks to »Hubble«, a clearer picture of the interstellar object now exists. But its origin gives researchers puzzles.
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Leaning Left5Leaning Right4Center10Last UpdatedBias Distribution53% Center
Bias Distribution
- 53% of the sources are Center
53% Center
L 26%
C 53%
R 21%
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