6.2 Giant planets
Now take a look at these images of the giant planets.
Figure _unit3.6.6 Figure 19 Image of Jupiter taken by the Hubble Space Telescope showing the motion of its bands of clouds around the Great Red Spot
Figure _unit3.6.7 Figure 20 A spectacular image of Saturn and its rings, taken by the Cassini spacecraft in early 2016
Figure _unit3.6.9 Figure 22 Neptune, snapped by Voyager 2 in 1989. The (enhanced) beautiful blue colour is due to the presence of methane in outer regions of the planet.
Here is a wonderful video of Jupiter [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] in which images taken by amateur astronomers have been animated.