It’s a cosmic cover-up! No, don’t put your tinfoil* hats on, this isn’t a conspiracy — it’s just Saturn’s moon Iapetus drifting in front of the bright star Gamma Orionis (aka Bellatrix) captured on Cassini’s narrow-angle camera on August 10, 2013. Such an event is called an occultation, a term used in astronomy whenever light … Continue reading "An Occult Occurrence: Saturn’s Moon Iapetus Blocks a Background Star"