A brand-new celestial visitor is cutting a path through our solar system, but its greatest value may not be in what it hides, but in what it reveals about its controversial, interstellar counterpart.
For months, the mysterious object 3I/ATLAS has fuelled public fascination and scientific heresy alike, thanks to the claims of Harvard astrophysicist Professor Avi Loeb that it may be a piece of alien technology. However, the recent detection of the new comet, C/2025 V1 Borisov, provides astronomers with a much-needed 'control experiment.'
