Ripples in Saturn’s innermost rings indicate the planet’s core is a thick “soup” of material that sloshes about slightly, creating detectable gravitational fluctuations.
The magnificent ringed planet Saturn, the jewel in the Solar System’s crown, comes to opposition on the night of 20/21 July. At around this time, the ringed wonder offers its best observing circumstances for 2020.
Analysis of data collected near the end of the Cassini spacecraft’s mission to Saturn indicate the planet’s spectacular rings are a relatively recent phenomenon.
The icy material making up Saturn’s rings is raining down into the planet’s atmosphere at rates implying the rings will disappear over the next 100 million to 300 million years.
NASA’s Cassini spacecraft plunged into the atmosphere of Saturn in 2017, concluding a hugely successful mission to explore the planet, its rings and icy moons. The spacecraft’s close-up images of Saturn’s ring system likely will remain unmatched for decades to come.
Saturn’s rings cast shadows on the planet’s cloud tops, providing a perfect backdrop for the brilliant sphere of the moon Enceladus in this image taken by NASA’s Cassini probe.
Continuing to make discoveries in the final weeks of a historic mission at Saturn, NASA’s Cassini spacecraft has recorded a unique time lapse movie looking out toward the planet’s iconic icy rings.
NASA’s Cassini probe gazes across the icy rings of Saturn toward the icy moon Tethys, whose night side is illuminated by Saturnshine, or sunlight reflected by the planet.