... 9a. Earth orbits Sun? . ... Kepler's Laws . ... and First Law . ... Tycho was a Danish nobleman interested in astronomy. ... He even measured and took into account the very slight shift of star positions near the horizon, due to the bending of light in the Earth's atmosphere, similar to its bending in glass or water. ... Not only were Kepler's laws confirmed and explained by later scientists, but they apply to any orbital system of two bodies--even artificial satellites in orbit around the Earth. ...