Exploring Our Solar System
By Lily sharman
The technology that Johannes kepler used
Invented an improved version of the refracting telescope which he used
to discover most of his laws.
Facts on Johannes kepler, and the NASA mission-voyager
The Voyager mission was designed to take advantage of a rare geometric arrangement of the outer planets in the land.Using this "gravity assist" technique, first demonstrated with NASA's Mariner 10 Venus/Mercury mission in 1973-74, the flight time to Neptune was reduced from 30 years to 12. Johannes kepler-Johannes Kepler was a German astronomer and mathematician who lived from December the 27th 1571 to November the 15th 1630. Kepler was interested in astronomy from an early age, this interest was further piqued when he witnessed both a comet in 1577 as well as a lunar eclipse in 1580.