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Astrophotographer captures rare sight of two comets racing across Earth's skies. Despite their vastly different origins and paths through space, from Earth they appeared side-by-side, creating a rare visual race across the skies.

3I/ATLAS Discovery Suggests the Interstellar Comet is “Anomalously Massive”. Sept 27, 2025. Mysterious comet 3I/ATLAS appears to be extremely large, making it orders of magnitude more massive than two other confirmed interstellar objects observed in our solar system in years past, a new study suggests.

Based on a new analysis of the most precise tracking data collected on the object since its discovery in July, the interstellar comet appears to be “anomalously massive,” a finding that raises new questions regarding our expectations about interstellar objects that occasionally traverse our solar system.. My Latest Videos...