Science ❯ Astronomy

Interstellar Objects

3I/ATLAS Comets Cometary Studies Comet 3I/ATLAS Comet Characteristics 3I/Atlas Comet Discovery Oumuamua Discovery Cometary Activity

NASA Reaffirms 3I/ATLAS Is a Comet as New Images Intensify Scrutiny Ahead of December Flyby

NASA maintains it is a comet posing no risk to Earth.

NASA Publishes Mars-Captured Views of Interstellar 3I/ATLAS as Minority Raises ‘Anomalies’

NASA Unveils Closest Images of Interstellar Comet 3I/ATLAS After Multi‑Mission Campaign

NASA Unveils Multi‑Mission Views of Interstellar Comet 3I/ATLAS

NASA Unveils Multi‑Mission Images of Interstellar Comet 3I/ATLAS

NASA Set to Release HiRISE Images of Interstellar 3I/ATLAS as ESA Refines Its Track

Interstellar Visitor 3I/ATLAS Emerges Intact With HiRISE Images Expected Within Days

Radio Detection From 3I/ATLAS Bolsters Natural-Comet Explanation

Radio Detection From 3I/ATLAS Points to Comet Activity as New Images Show Sprawling Jets

MeerKAT Registers First Radio Signature From Interstellar Visitor 3I/ATLAS

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

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

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

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

Interstellar Visitor 3I/ATLAS Shows Unprecedented Sunward Jet as Closest Mars‑Orbiter Data Arrive

Keck Confirms Anti-Solar Tail and Nickel-Rich Emissions From Interstellar Comet 3I/ATLAS

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

Interstellar Comet 3I/ATLAS Nears Oct. 30 Perihelion With CO2-Rich Makeup and Record Pace

Water Detected From Interstellar Visitor 3I/ATLAS as Perihelion Nears

Twin Green Comets Enter Prime Viewing Week Before Closest Approaches