A vast shadow will sweep over Saturn's cloud tops early on July 18: Here's how to see itBy otako_fzbgs4 / July 17, 2025 Titan shadow transit seasons occurs just once every 15 years. Related posts: Catch solar bursts in new citizen science project Sped-up simulation of Hera’s Mars flyby Hera asteroid mission’s Mars flyby Watch live: Images from Hera’s Mars flyby