Match the scientist with their discovery

Here are the matches between the scientists in Column A and their discoveries or contributions in Column B:

1. Aristotle & Ptolemy - d. Geocentricism
2. Copernicus - a. Heliocentricism
3. Newton - e. Universal Law of Gravitation
4. Kepler - g. Elliptical planetary motion
5. Galileo - b. Invented the telescope
6. Brahe - c. Kepler's mentor

So the matched pairs are:
1 - d
2 - a
3 - e
4 - g
5 - b
6 - c