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3I/ATLAS

Observations Discovery Interstellar Objects Space Exploration Chemical Composition Observation Observation Techniques Characteristics NASA Orbital Dynamics

Interstellar 3I/ATLAS Shows Unusual Acceleration and Blue Hue Near the Sun, NASA Says No Threat

NASA maintains the object poses no threat to Earth ahead of new observations in December.

3I/ATLAS Brightens Unusually and Turns Blue Near the Sun as Data Indicate a Cosmic-Ray–Altered Crust

After Perihelion, Swift Spots Unexpected Water From Interstellar 3I/ATLAS

Interstellar Comet 3I/ATLAS Reaches Perihelion as Telescopes Await December Return

Interstellar Comet 3I/ATLAS Hits Perihelion as Global Observatories Intensify Monitoring

3I/ATLAS Nears Perihelion During Solar Conjunction as Global Campaign Gears Up

NASA and IAWN Activate Coordinated Tracking of Interstellar Comet 3I/ATLAS Ahead of Perihelion

3I/ATLAS Nears Perihelion as Agencies Coordinate Tracking and Spacecraft Tail-Sampling Opportunities

NASA Confirms Earth’s Temporary Quasi-Satellite as Interstellar Comet 3I/ATLAS Nears Perihelion

Europa Clipper May Skim 3I/ATLAS’s Ion Tail as Interstellar Comet Nears Perihelion

Interstellar Comet 3I/ATLAS Surprises Researchers With CO2-Rich Coma and Nickel Vapor

Mars Orbiters Capture Closest Views of Interstellar 3I/ATLAS as UV Data Reveal Intense Water Outgassing

Interstellar Visitor 3I/ATLAS Shows Water and CO2 Activity as Mars Orbiters Snag Difficult Views

ESA Mars Orbiter Captures Closest View of Interstellar Comet 3I/ATLAS

After Mars Flyby, Interstellar Comet 3I/ATLAS Delivers Data as Agencies Reject Artificial Claims

ESA Spacecraft Track Interstellar Comet 3I/ATLAS Near Mars as Perihelion Nears

Interstellar Comet 3I/ATLAS Makes Closest Pass to Mars as Spacecraft Observe

Interstellar Comet 3I/ATLAS Withstands Solar Storm as Mars Flyby Nears

3I/ATLAS Shows Growing Tail and Rapid Brightening as Evidence Favors a Natural Comet

Interstellar Comet 3I/ATLAS Draws Viral Alien Claims as Scientists Reaffirm Natural Origin