a weird transmission which was picked up by stellar cartographers last year, has now been confirmed to not be aliens but American transmission from 1960s

https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1964-003Av

https://www.smithsonianmag.com/smart-news/astronomers-detected-a-mysterious-radio-burst-it-turned-out-to-be-from-a-dead-nasa-satellite-180986884/

https://arxiv.org/abs/2506.11462

Now, the researchers have discovered the blast didn't come from a celestial object, but a defunct American satellite orbiting Earth...

"We got all excited, thinking maybe we'd discovered a new pulsar or some other object," says Clancy James, a researcher at Australia's Curtin University who is on the "Pathfinder: an Australian Square Kilometer Array" (PASKA) team, to Alex Wilkins at New Scientist.

After taking a closer look, however, the team realized that the only viable source for the burst was NASA's dead Relay 2, a short-lived satellite that hasn't been in operation since 1967....