An interstellar comet known as 3I/ATLAS has captured astronomers’ attention as it dramatically spews ice and dust toward the Sun in a dazzling cosmic display.
The new composite image, captured on August 2 by the Two-meter Twin Telescope (TTT) at the Teide Observatory in Spain’s Canary Islands, shows a brilliant jet of material shooting from the comet’s surface — a vivid reminder of how alien visitors behave as they warm up near our star.
Interstellar comet 3I/ATLAS blasts a jet towards the sun in new telescope image | Space
Images of interstellar comet 3I/ATLAS | BBC Sky at Night Magazine
New images of interstellar object 3I/ATLAS show giant 'jet' shooting toward the sun | Live Science
A Rare Visitor from Beyond the Solar System
The comet 3I/ATLAS is only the third known interstellar object to pass through our solar system, following the mysterious ʻOumuamua in 2017 and 2I/Borisov in 2019. These rare travelers originate from outside our solar system, likely ejected from other planetary systems millions of years ago.
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3I/ATLAS is now hurtling toward its closest approach to the Sun, expected on October 30, when it will come within 1.8 astronomical units (about 167 million miles) of Earth — close enough to be visible in small telescopes before it fades back into the dark of interstellar space.
“This is the usual,” said Miquel Serra-Ricart, astrophysicist and chief science officer at the Light Bridges research institution, in an email to Live Science. “The comet’s tail is also pointing away from the sun, which is typical of these icy objects.”
The Jetting Phenomenon Explained
The new images show the comet’s nucleus — the solid icy core — surrounded by a glowing coma, or atmosphere. The purple jet extending toward the Sun spans roughly 6,200 miles (10,000 km), more than twice the width of the continental United States.
When comets like 3I/ATLAS approach the Sun, solar heat warms specific regions of the surface, releasing gases trapped beneath. These sublimated gases, often rich in carbon dioxide and dust, burst outward through weaker areas, creating the spectacular jets scientists can observe from Earth.
Serra-Ricart estimated the jet’s distance and composition, noting, “It’s likely made up of carbon dioxide and dust particles — similar to what NASA’s James Webb Space Telescope observed earlier this year.”
Interstellar Comet Tail
As the comet rotates, its jet may fan out and spread material into its coma and tail — a behavior also seen in solar system comets such as C/2020 F3 NEOWISE, famously visible to the naked eye in 2020. These jets provide valuable insight into how icy bodies from other star systems behave and how they differ from those formed in our own.
While a few fringe researchers speculate that 3I/ATLAS could be an alien probe, most astronomers agree the comet is behaving exactly as expected for a natural interstellar visitor. The new imagery strengthens that view, revealing nothing unusual beyond its breathtaking activity.
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