Interstellar Comet 3I/ATLAS Is Passing Through Our Solar System — And the Questions It Raises Are Unsettling
On an ordinary night at a small hillside observatory in Spain, a routine scan of the sky produced something that was not routine at all. A faint streak of light appeared on the observer’s screen, moving with a trajectory that did not match anything in the catalogues. As they watched, it grew brighter. A tail … Read more