Observations Observation Interstellar Objects Characteristics Space Exploration Discovery Chemical Composition NASA Observation Techniques Extraterrestrial Life Trajectory Space Missions NASA Observations NASA Missions Behavior Visibility Theories Observational Studies Extraterrestrial Theories Composition Orbital Mechanics NASA Images Monitoring Future Observations Cryovolcanism Observational Astronomy Orbital Dynamics Impact on Earth Discovery and Observation Observation Events Public Interest Planetary Defense Scientific Research Public Perception Hubble Space Telescope Acceleration Perihelion Discovery and Characteristics Trajectory Monitoring Research Extraterrestrial Hypotheses Physical Characteristics Non-gravitational acceleration Comet Behavior Cosmic Rays Juice Mission Tracking Methods Scientific Significance Movement Scientific Debate Controversies Scientific Studies Extraterrestrial Objects European Space Agency Alien Technology Perihelion Observations Future Path Extraterrestrial Technology Comparison Radio Astronomy Orbital Data Potential Impact on Earth Tianwen-1 Celestial Events Composition and Structure Historical Significance Tracking Tools Physical Transformations Live Coverage Classification Speculations about Alien Technology K1/ATLAS Avi Loeb Image Analysis Anomalous Characteristics NASA Involvement WOW! Signal NASA and ESA Response Astrophysics Myths and Misconceptions Organic Chemistry Tail Development Close Approach Live Streaming Toxicity Public Engagement X-ray Emissions Extraterrestrial Speculation Discoveries NASA TESS Observations Research Findings Observation Equipment Gases Emission Anti-tail Methane Detection Event Dates Space Objects Radio Signals Comet Characteristics Probes
Preprint analyses using ALMA with JWST indicate a cold, ancient origin as the fading visitor nears a brief pass by Jupiter.