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interstellar comet Articles | Developments Today

NASA images showing the interstellar comet 3I/Atlas captured by the Hubble Space Telescope on Nov. 30th, 2025. Credit: NASA/ESA/STScI/UCLAM/SAO/STScI

JWST Data Suggest Interstellar Comet 3I/ATLAS Is Rich in Methane Ice

3I/ATLAS became the third known interstellar object detected in the Solar System on July 1, 2025.
A new JWST-based analysis says the comet is rich in methane ice.
Its composition could reveal how small bodies form in other planetary systems.

DE

DT Editorial Team·Apr 24, 2026·via universetoday.com

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Two views of the interstellar invader comet 3I/ATLAS captured by the JUICE spacecraft

JUICE spots interstellar comet 3I/ATLAS ejecting water at extreme rates

ESA's JUICE spacecraft observed interstellar comet 3I/ATLAS ejecting about two tons of water per second.
The object is only the third known interstellar visitor detected passing through the solar system.
Its activity could help scientists study material linked to planet formation around another star.

DE

DT Editorial Team·Apr 16, 2026·via space.com

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3i/atlas data

NASA Releases Full Interstellar Comet 3I/ATLAS Dataset for Science

NASA has released the full observational dataset for interstellar comet 3I/ATLAS as it exits the solar system permanently
Interstellar comets are material from other planetary systems, the only way to study extrasolar chemistry in situ
The dataset includes spectroscopic, photometric, and imaging data gathered from multiple observatories during the comet's transit
Open access allows the global research community to analyze the data and make discoveries beyond those of the original observing teams

DE

DT Editorial Team·Mar 22, 2026·via science.nasa.gov

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A white, glowing egg-shaped object lies in the centre of the black-and-white image, on a dark, starry background. Glowing streaks spread upwards from the object. In the top left, a yellow arrow marked ‘Sun’ points straight down, and a blue arrow marked ‘Velocity’ points towards the 7 o’clock direction. In the bottom left, an inset shows the same object on a lighter grey starry background, filled with ragged-edged, concentric egg shapes gradiented black-to-white

JUICE Spacecraft Captures First Image of Interstellar Comet 3I/ATLAS

Third interstellar object ever detected, imaged by ESA's JUICE spacecraft
Shows glowing coma and sweeping tail confirming cometary nature
May help trace the comet's origin to a specific star system

DE

DT Editorial Team·Mar 2, 2026·4 min read·via space.com

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