When Does Halley's Comet Return? July 28, 2061 Visibility, History, and Where It Is Now
See Where 3I/ATLAS Is Right Now
Track the interstellar comet's live position in our interactive 3D solar system.
Comet Defender
Take a 60-second break and protect Earth from incoming comets.
Take a 60-second break and protect Earth from incoming comets.
Play NowRelated Posts
SETI's Radio Search of 3I/ATLAS: How Five Telescopes Listened for Alien Signals
Five radio telescopes across three continents searched 3I/ATLAS for alien signals down to smartphone-level power. Here's the full story of the most sensitive SETI search ever.
Nuclear Fuel in 3I/ATLAS: JWST Discovers Record-Breaking Deuterium in an Interstellar Comet
JWST found deuterium levels 30x higher than any known comet in interstellar object 3I/ATLAS. Learn what this nuclear fusion fuel reveals about the comet's 10-billion-year origin.
Harvard and 3I/ATLAS: Avi Loeb, the Alien Debate, and the Science That Changed Everything
How Harvard's Avi Loeb shaped the 3I/ATLAS story — from the Loeb Scale and Juno intercept proposal to JWST discoveries, 22 anomalies, and the Galileo Project's search for alien technology.
What Ended Up Happening with 3I/ATLAS: The Complete Story of Our Interstellar Visitor
From discovery to departure — the full story of Comet 3I/ATLAS, the third interstellar object. Alien chemistry, record-breaking observations, the Jupiter flyby, and where it's heading now.