The NASA Cassini spacecraft has been in orbit for more than 10 years. He managed to capture the whole range of rings of this planet, which are special in nature. However, there are more pleasant things, for example, the image of two natural satellites at once in one frame, especially when they are connected.
This terrific phenomenon occurred in the sky on September 24, when Cassini took an ideal position on the same line with Enceladus and Tefii. The most interesting thing is that the difference in size between the two objects became immediately noticeable, because the diameter of Enceladus is 504 km (or 313 miles), while the diameter of Tethys is 1062 km (or 660 miles). This is almost 2 times more. When the Cassini spacecraft flew, it was at a distance of 2, 1 million kilometers (or 1, 3 million miles) from Enceladus and 2, 6 million kilometers (1, 6 million miles) from Tethys. Consequently, between these 2 moons is approximately 500, 000 km (or 300, 000 miles).
Enceladus has a huge scientific interest from NASA and the Cassini mission. At the moment, it is known that the moons contain under the icy crust of the ocean some ingredients for life. Cassini is now tuning in for his last ever flight to Enceladus for a meeting known as the E-22 flight, which will take place on December 19th. The satellite will have to go about 5000 km or 3106 miles on the surface of the moon.
