When will 3I/ATLAS be closest to Earth?
The comet's closest encounter with Earth is expected on December 19.
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Space / Comets
NASA, ESA, and Hubble Space Telescope Revisits Interstellar Comet 3I/ATLAS
Interstellar comet 3I/ATLAS is making its way out of our solar system, but not before NASA, ESA, and the Hubble Space Telescope captured some of the clearest photos yet. Discovered in June 2025, 3I/ATLAS has been zipping through the inner s...
Key Insights
- NASA and ESA shared new images of comet 3I/ATLAS, showing it getting active as it approaches Earth.
- The Hubble Space Telescope captured an image of the comet's nucleus and coma, revealing details about its composition.
- The Jupiter Icy Moons Explorer (Juice) also snapped an image, showing the comet brimming with activity, including a plasma tail and a faint dust tail.
- Observations of 3I/ATLAS are expected to continue for several more months as it heads out of the solar system.
- Why this matters: Studying interstellar objects like 3I/ATLAS helps us understand the formation and evolution of planetary systems beyond our own.
In-Depth Analysis
Comet 3I/ATLAS, confirmed as the third known interstellar object, has been closely monitored by various space agencies. Its journey through the inner solar system has provided valuable data. The Hubble Space Telescope, located 178 million miles from the comet, captured images of the comet's nucleus and coma. These images enable scientists to constrain 3I/ATLAS' size, estimating it to be between 1,400 feet and 3.5 miles wide. The Jupiter Icy Moons Explorer (Juice), even closer to the comet, observed it with five scientific instruments, revealing a glowing halo of gas and hints of two tails. As 3I/ATLAS continues its journey, the James Webb Space Telescope and other observatories will gather more data, furthering our understanding of these cosmic visitors.
FAQ
What makes 3I/ATLAS special?
It is an interstellar object, meaning it originated from outside our solar system.
How are scientists studying 3I/ATLAS?
Multiple space telescopes and observatories are tracking and imaging the comet.
Takeaways
- Comet 3I/ATLAS offers a rare glimpse into planetary systems beyond our own. Its flyby provides scientists with invaluable data. Keep an eye out for more images and findings as observatories continue to track this interstellar visitor. The study of 3I/ATLAS supports NASA's mission to find, track, and understand solar system objects.
Discussion
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Sources
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