Johannes Kepler was the first to state that planets move in elliptical orbits.
That is one of Kepler's Laws, stated by Johannes Kepler.
Ferme
This is Kepler's First Law.
galelio
I believe that would be Galileo (sp?) However I'm pretty sure Kepler is the one that proved it.
Kepler
Johannes Kepler stated that the planets revolve around the sun in an ellipse.
The person who first stated this was Johannes Kepler.
Johannes Kepler in his three laws of planetary motion
That is one of Kepler's Laws, stated by Johannes Kepler.
Johannes Kepler
he stated that planets went around the sun
Johannes Kepler made that suggestion, which was confirmed later when Newton's discoveries showed why an object will move in an ellipse under the inverse-square force of gravity.
Galileo Galilei
Ferme
This is Kepler's First Law.
galelio