For a number of years, astronomers and scientists postulated on the possibility of the existence of a tenth planet in the solar system. References to ancient cultures as well as questions about the orbit of gas giants prompted further investigations into the mysterious Planet X.

Similar Posts:

• Philosophy of Cosmology
• Effects of Space Travel on the Human Body
• Exploration of Mars
• Weightlessness in Space – How Astronauts and Spacecraft Deal with Microgravity and Theories on Creating Artificial Gravity
• History of Mars Exploration