VISUAL ARCHIVE / IMAGE STORY
The Fleet That Illustrates a Paradox
Imaginary launch orders make the relativity of distant simultaneity vivid.
In the classic thought experiment, one observer can assign a post-launch event in Andromeda to the present while another assigns a pre-launch event to the same Earth moment. The alien fleet is imaginary, but the relativity of distant simultaneity comes directly from special relativity.
THE OBSERVATION
What we can actually see.
The fleet story describes two observers who assign different distant events to the same local instant. It follows the coordinate rules of special relativity for spacelike-separated events, without transmitting any news from the galaxy.
THE ILLUSTRATION
What the artwork imagines.
The spacecraft are fictional and their launch is not observed. The scene dramatizes a definition of now; it predicts no visit or faster-than-light communication.
FROM THE ILLUSTRATED ARTICLE
The story that inspired it.
The Andromeda thought experiment distinguishes the delay of light from the relativity of assigning a distant event to a local present. Imaginary launch orders make the relativity of distant simultaneity vivid.
Read There Is No Such Thing as “Right Now” Across the UniverseCHECK THE RECORD
The image interprets the research below. Follow the original work for the measurements and limits behind the scene.
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