Stellar aberration

This post is a bit more technical than usual and discusses stellar aberration, the apparent movement of stars as a result of the motion of the Earth.¬† It is an interesting case of the application of the scientific method. ¬†Observations were made to test a scientific theory, but unexpected results were found, which in turn… Continue reading Stellar aberration

Kepler’s other achievements

As discussed in my previous post, Kepler's improvement of Copernicus's heliocentric system led to its more general acceptance, and his three laws describing the way planets move are fundamental laws of astronomy. However, this wasn't his only contribution to science. He was one of the greatest thinkers of the seventeenth century scientific revolution and in… Continue reading Kepler’s other achievements