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Study: Interstellar Comet 3I/ATLAS Formed in Cold, Nitrogen-Rich Environment

The distribution of dust (blue), gas (green) and ions (red) in the interstellar comet 3I/ATLAS. Image credit: Lea Ferellec.

Astronomers have found new evidence that 3I/ATLAS, only the third confirmed interstellar object ever detected entering the Solar System from beyond, formed in an extremely cold environment far from any star.

The post Study: Interstellar Comet 3I/ATLAS Formed in Cold, Nitrogen-Rich Environment appeared first on Sci.News: Breaking Science News.

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James Webb Telescope Discovers Hidden Giant Planet in Famous Star System

Beta Pictoris System (Artist’s Concept)Webb found a hidden giant planet by detecting its atmospheric chemistry through a bright debris disk. For years, a third giant planet remained concealed within the bright dust surrounding Beta Pictoris, one of the most closely observed planetary systems in the Milky Way. NASA’s James Webb Space Telescope has now exposed the hidden world by [...]
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Astronomers Probe Chemistry of Giant Exoplanet Beta Pictoris b

This artist’s impression shows how the gas giant exoplanet inside the disc of Beta Pictoris may look. Image credit: L. CalΓ§ada / ESO.

Using the upgraded GRAVITY+ instrument on ESO’s Very Large Telescope Interferometer (VLTI), astronomers have measured the ratio of carbon isotopes in the atmosphere of the young exoplanet Beta Pictoris, offering new insights into how giant planets form.

The post Astronomers Probe Chemistry of Giant Exoplanet Beta Pictoris b appeared first on Sci.News: Breaking Science News.

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Astronomers Finally Find Milky Way’s Missing Black Hole Wind

This image shows the evidence for the wind blowing away from Sagittarius A*: the white dot in the center of the image shows the supermassive black hole; in orange is data from ALMA, mapping the location of cold gas composed of carbon monoxide in the image; in blue is X-ray data from Chandra; a large cone-shaped cavity, visible as an absence of cold gas in the ALMA data, is filled by hot X-ray-emitting gas in the Chandra data. Image credit: NASA / CXC / UMass / Wang et al. / ALMA / ESO / NAOJ / NRAO / Longmore et al. / Minniti et al.

After a 50-year search, astronomers have uncovered evidence that Sagittarius A* -- the 4.3-million-solar-mass black hole that resides at the center of our Milky Way Galaxy -- is blowing a hot cosmic wind into its surroundings, carving out a giant cavity near the Galaxy’s heart.

The post Astronomers Finally Find Milky Way’s Missing Black Hole Wind appeared first on Sci.News: Breaking Science News.

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Webb Detects Methane on Interstellar Comet 3I/ATLAS

Hubble captured this image of 3I/ATLAS on July 21, 2025, when the comet was 446 million km (277 million miles) from Earth. Image credit: NASA / ESA / David Jewitt, UCLA / Joseph DePasquale, STScI.

Using the spectral data from the Mid-Infrared Instrument (MIRI) onboard the NASA/ESA/CSA James Webb Space Telescope, astronomers have detected methane on 3I/ATLAS.

The post Webb Detects Methane on Interstellar Comet 3I/ATLAS appeared first on Sci.News: Breaking Science News.

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