Interstellar Visitor
Real-time coverage of observations and mission discoveries ● LIVE
BREAKTHROUGH
NEW
Scientists discover 3I/ATLAS exhibits extreme negative polarization of -2.7%, the deepest ever recorded for any comet, suggesting dust particles fundamentally different from all known comets.
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mission
Interstellar comet reaches perihelion Oct 29 hidden behind the Sun. Europa Clipper and Juice prepare for unprecedented ion tail observations in November.
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breakthrough
First clear water detection from an interstellar comet reveals 40 kg/s outflow from 2.9 AU—rewriting our understanding of interstellar visitors.
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mission
ESA orbiters delivered the closest imagery yet while NASA's Swift confirmed a 40 kg/s water jet from 2.9 AU.
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observation
NASA's Perseverance rover captures historic images of the interstellar comet during its October 3 close approach to Mars.
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mission
3I/ATLAS crosses Mars' orbital path at just 0.0179 AU, offering unique observation opportunities from Mars spacecraft.
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observation
New high-resolution images reveal intricate details in the comet's tail and coma structure.
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observation
Space telescopes provide size estimates and reveal unusual CO₂-rich composition.
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breakthrough
Minor Planet Center confirms hyperbolic orbit, designating it as 3I - the third interstellar object.
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breakthrough
ATLAS telescope at Río Hurtado, Chile discovers unusual fast-moving object, later confirmed as interstellar.
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