Nasa unveils stunning images of colliding galaxies and cosmic nurseries
NASA kicked off the new year by releasing breathtaking cosmic images that capture colliding galaxies, merging galaxy clusters, and vibrant stellar nurseries, giving viewers a front-row seat to the universe's most dramatic events.
Colliding spiral galaxies in slow motion
The space agency unveiled a striking composite image blending data from the James Webb Space Telescope and the Chandra X-ray Observatory. It showcases the spiral galaxies IC 2163 and NGC 2207 locked in a gravitational dance, located about 120 million light-years away in the constellation Canis Major. Their interaction began roughly 40 million years ago.
Infrared observations from Webb, rendered in whites, grays, and reds, highlight cold dust and debris woven through the galaxies' cores and spiral arms. Chandra's X-ray data, shown in blue, reveals scorching gas regions heated to millions of degrees by massive young stars born from the collision. These galaxies churn out the equivalent of two dozen Sun-sized stars annually far outpacing the Milky Way's modest rate of two or three.
Stellar fireworks beyond the Milky Way
NASA's Earth Observatory featured another highlight as its Image of the Day for January 1: the Large Magellanic Cloud, a dwarf galaxy 160,000 light-years distant, snapped by astronauts aboard the International Space Station on November 28, 2025. This luminous patch against Earth's atmospheric glow hosts the Tarantula Nebula, or 30 Doradus, the Local Group's most massive and luminous star-forming region.
Home to some of the universe's heftiest stars up to 200 times the Sun's mass this cosmic nursery pulses with intense star birth.
Champagne cluster's festive fusion
Chandra joined the celebrations with an image of the "Champagne Cluster," aptly named for its bubbly appearance and discovery on December 31, 2020. This composite depicts two galaxy clusters merging into a colossal structure. Chandra data exposes superheated gas surging through the cluster, while optical images from telescopes in Arizona and Chile reveal over 100 individual galaxies.
Astronomers debate its timeline: either the clusters collided over two billion years ago and now approach a second smash, or they grazed once about 400 million years ago and are drifting apart.
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