Darryl Z. Seligman is an Assistant Professor of Physics and Astronomy at Michigan State University. Comet 3I/ATLAS is the third large interstellar visitor that we have ever discovered —- an asteroid ...

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LOS ANGELES, Calif. (KTLA) – This time last year, skygazers were treated to the “Christmas Star,” when Jupiter and Saturn aligned and appeared the closest together from Earth’s vantage point in nearly ...

Just six days before Christmas, sky-watchers have a rare treat as the interstellar comet 3I/ATLAS passes close to Earth. Only the third confirmed object from beyond our solar system, 3I/ATLAS offers ...

Look into the night sky Sunday and you just might see a bright, fuzzy ball with a greenish-gray tint. “The fuzziness is just because it’s a ball of gas basically,” Tony Farnham, a research scientist ...