'Alien Mothership' Hypothesis Test: Why 3I/ATLAS's Perihelion Thrust Is Crucial

Astronomers are preparing for a decisive test as interstellar object 3I/ATLAS reaches its perihelion on 29 October 2025, when ...
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How Does a Solar Eclipse Work?

Solar eclipses occur when the moon gets between Earth and the sun. This causes the moon to cast a shadow onto Earth. A solar ...