
An interstellar visitor is facing its trial by fire today, and one of the world's most prominent astronomers is watching for the verdict. Some believe the object, 3I/ATLAS, may be about to unveil 'alien tech.'
The object is making its closest approach to the sun on Wednesday, 29 October. This moment, known as perihelion, is what one prominent scientist is calling the 'acid test'—a critical moment that could help determine if this mysterious object is just a comet, or an alien spacecraft.