Breaking 3I/ATLAS News With Darryl Seligman

Exploring new observations of the interstellar object 3I/ATLAS, with new data from the Vera Rubin Observatory and the Hubble Space Telescope. Darryl Seligman joins John Michael Godier to explore the interstellar object's origins, its unique properties, and the unprecedented observational efforts now underway.

0:00 Introduction to Event Horizon with John Michael Godier
4:05 Initial Observations of 3i/ATLAS
8:10 Measuring Brightness and Early Data on 3I/ATLAS
12:12 Data from Vera Rubin Telescope on 3I/ATLAS
16:14 Challenges in Observing the New Interstellar Object
20:15 Unmatched Capabilities of UV Observations
24:20 Galactic Speeds and Implications for Detection
28:26 Interstellar Object Observation Strategies with Rubin Telescope
32:27 Long-term Observational Goals and Predictions
36:30 Unprecedented Opportunities for Studying Interstellar Objects
40:38 Assessing Accuracy and Confirming Observations
44:43 Famous Examples of Interstellar Object Observations
48:45 Rapid Response and Observational Challenges
53:18 Heat Signatures and Analysis

Links:
NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)
https://arxiv.org/abs/2507.13409

The Feasibility of a Spacecraft Flyby with the Third Interstellar Object 3I/ATLAS from Earth or Mars
https://arxiv.org/abs/2507.15755

Discovery and preliminary characterization of a third interstellar object: 3I/ATLAS
https://arxiv.org/abs/2507.02757

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FOOTAGE:
NASA
ESA/Hubble
ESO - M.Kornmesser
ESO - L.Calcada
ESO - Jose Francisco Salgado (josefrancisco.org)
NAOJ
University of Warwick
Goddard Visualization Studio
Langley Research Center
Pixabay