THE PLANETS AND THE EARTH 63 



44. THE SOLAR SYSTEM 



Up to this time we have looked at natural phenomena from 

 a personal standpoint. We will now consider the real place 

 which we, on earth, occupy in the great system of which we 

 are such a small part. 



The solar system consists of the sun and the following 

 planets, named in the order of their distances from the sun: 

 Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, 

 Neptune. It is called solar, because all of these planets re- 

 volve around the sun, and a system, because they obey definite 

 laws, returning upon their orbits at regular intervals. 



References : 



1. 1002 : 485-487. The Age and Future of the Solar System. 



2. 1304 : 3-6. Other Spheres. 



a. 1001 : 359-360. Age and Duration of Solar System. 



b. 1003 : 142-144. The Structure of the Solar System. 



c. 1004 : 188-189. The Planetary System. 



d. 1004 : 191-192. Gravitation Explains Planetary Motion. 



e. 1301:22-27. The Solar System. 

 /. 1303 : 14. The Solar System. 

 g. 1305 : 35-38. The Solar System. 



h. 1306 : 5-13. The Solar System, the Earth, and the 



Moon. 



i. 1307 : 9-14. The Earth among Planets] and the Sun. 



j. 1309 : 11-17. The Earth and the Solar System. 



k. 1310 : 320-321. The Solar System and the Stars. 



I. 1311 : 17-18. The Earth is One of the Planets. 



m. 1312 : 2. What the Solar System Comprises. 



45. THE PLANETS AND THE EARTH 



These large bodies of matter are cold, and shine only by 

 reflected light, similar to the light received from the moon. 

 The planets may support life according to the conditions of 



