1. The Exploration of Space Saturn and its Moons

2. Space Words Planet Moon Sun Star Solar System Orbit

3. There are nine planets in our solar system. The planets orbit around the sun.

4. Galileo Galilei Italian Astronomer 1564-1642 1610: Saturn rings sighted by Galileo Galilei Although he saw the rings first, Galileo did not know what they were. They appeared to him as ears or lobes on either side of the planet. 1612: Galileo sees that rings seem to vanish http://www.esa.int/SPECIALS/Cassini-Huygens/SEMSP6HHZTD_0.html

5. Christiaan Huygens Dutch Mathematician and Astronomer 1629-1625 He created a new way to make a better telescope lens. 1655: He solved mystery of vanishing rings and discovered Titan, Saturn's largest moon. 1656: He patented the first pendulum clock http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Huygens.html

6. Giovanni Domenico Cassini French-Italian Astronomer 1625-1712 Cassini discovered Saturn's four other major moons: Iapetus, Rhea, Tethys, and Dione, and discovered that Saturn's rings are split largely into two parts by a narrow gap -- known since as the "Cassini Division.“ http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Cassini.html

7. Cassini Mission to Saturn Photo: ESA

8. Cassini spacecraft and Huygens Probe Photos: ESA

9. Titan IVB/Centaur getting ready for takeoff October 1997 Photo: ESA

10. The Cassini-Huygens voyage through the Solar System Illustration: ESA

11. Io and Jupiter Photo: ESA

13. Rhea Photo: ESA

14. Dione and Saturn Photo: ESA

15. Phoebe Photo: ESA

16. Titan Titan in ultraviolet and infrared wavelengths. It was taken by the Cassini-Huygens Imaging Science Subsystem on 26 October 2004, and is constructed from four images acquired through different colour filters. The image scale of this picture is 6.4 kilometres per pixel. Photo: ESA

17. Huygen’s landing site

18. This picture was taken during descent to the landing site, that indicates flow around bright 'islands'. The areas below and above the bright islands may be at different elevations. Photo: ESA

19. river channel and ridge area on Titan Photo: ESA

20. 14 January 2005, Titan This picture gives an indication of the actual color of the surface. Initially thought to be rocks or ice blocks, the two rock-like objects just below the middle of the image are about 15 centimetres (left) and 4 centimetres (centre) across respectively, at a distance of about 85 centimetres from Huygens.

21. Facts about Saturn Orbital period (Saturnian year) 29.46 Earth years Saturnian day 10 hours 39 mins Core temperature Approx. 12 000K (11 700°C) Cloud-top temperature 150K (-139 °C) Average density 0.7 g per cubic cm (0.7 times that of water) Atmosphere 96% hydrogen and 4% helium with traces of water, methane and ammoni Moons 31