Related video above: Here’s Why Jupiter Never Became a StarA spacecraft orbiting Jupiter discovered an FM radio signal the gas giant’s moon from the moon Ganymede. The discovery is the first time a signal has been detected from the moon.Patrick Wiggins, a NASA Utah ambassador, cautioned it’s probably not aliens, according to KDFW.“It’s not E.T.,” Wiggins said. “It’s more of a natural function.”The spacecraft, called