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Comet 3iatlas

All articles tagged with #comet 3iatlas

science21 days ago

Astronomers Hunt for Technosignatures as Interstellar Comet 3I/ATLAS Passes Earth

During its closest approach to Earth, the interstellar comet 3I/ATLAS was observed by the Breakthrough Listen project for signs of alien technosignatures, but no credible signals were detected. Simultaneously, another team estimated the comet's size to be around 1 km based on its non-gravitational acceleration, confirming its natural cometary nature. The efforts highlight ongoing searches for extraterrestrial signals and detailed studies of interstellar objects.

via IFLScience|
#breakthrough-listen#comet-3iatlas#interstellar-object
science25 days ago

This Week in Science: Japan's Laser Test, Comet Farewell, and AI's Math Breakthroughs

This week in science, advancements include a longer-lasting quantum processor, the departure of interstellar comet 3I/ATLAS, AI tackling complex math problems, pumas exhibiting new behaviors after conservation efforts, and a record-breaking gamma-ray burst, highlighting significant progress and discoveries across various fields.

via Live Science|
#ai-math-problems#comet-3iatlas#pumas-penguins
science26 days ago

Comet 3I/ATLAS Nears Earth: How to Spot It This Friday

Comet 3I/ATLAS, discovered in July 2025, reached its closest point to Earth last night and is now moving away. It can be viewed via a live webcast or with backyard telescopes, though it appears as a tiny star-like point at magnitude 11. The comet offers a rare opportunity to observe an interstellar object, with additional images released by NASA from the Europa Clipper spacecraft.

via Live Science|
#astronomy#comet-3iatlas#nasa
science26 days ago

Interstellar Comet 3I/ATLAS Nears Closest Approach to Earth

Comet 3I/ATLAS, an interstellar visitor from beyond the Milky Way, made its closest approach to Earth on December 19, coming within 168 million miles, and is now heading back to the outer solar system. Its trajectory suggests it originated from an older, thick disk region of the galaxy, making it potentially the oldest comet observed. Its unexpected brightening near the sun has intrigued scientists, and data from this encounter will enhance understanding of interstellar objects and galactic history.

via Space|
#astronomy#comet-3iatlas#interstellar
science2 months ago

Scientists Investigate the Green Glow of Interstellar Comet 3I/ATLAS

Comet 3I/ATLAS, the third known interstellar visitor to our solar system, has not actually changed color; it only appeared to do so once when its gas coma became bright earlier this year. Despite media reports suggesting multiple color changes, scientists clarify that the comet's appearance has remained consistent, with its blue-green coma visible since early September. The comet continues to be a fascinating object for observation and study as it passes through our cosmic neighborhood, with closest approach to Earth on December 19.

via Space|
#color-change#comet-3iatlas#gas-coma
science2 months ago

Comet 3I/ATLAS Approaches Perihelion

Comet 3I/ATLAS, the third known interstellar object to enter our Solar System, reached perihelion on October 30, 2025. Observations revealed its active sublimation of CO₂ with minimal water vapor, unusual metal ratios, and non-gravitational forces affecting its trajectory. The data from this brief visit enhances understanding of interstellar bodies and prepares for future interstellar missions.

via SETI|
#comet-3iatlas#comet-composition#interstellar-object