http://www.newsweek.com/green-comet-set-cosmic-meeting-mars-sky-this-week-watch-live-1779187 > The green comet C/2022 E3 (ZTF) is set for a "cosmic meeting" with Mars in the sky this week—and here's how you can watch the celestial event live from the comfort of your own home. > The comet was discovered by the Zwicky Transient Facility (ZTF)—an astronomical survey conducted by the Palomar Observatory, near San Diego in California—on March 2, 2022.