One thing scientists do is to find order among a large number of facts, and one way to do that across fields as diverse as biology, geology, physics and astronomy is through classification.
I like the planets because they are real places that you can go to and send machines to. Faraway astronomy - galactic astronomy and extra-galactic astronomy - is really cool stuff, but to me, it's about destinations.
If I had to go back to school for anything, I'd go for astronomy.
My whole entry into astronomy started from a spiritual place.
I got into astronomy through an interest in religion.
I read about eastern philosophy and religion and existentialism. All that introspective thinking got me thinking about the great beyond. That turned my sights from inwards to outwards, and I started becoming interested in the makeup of the universe, and I started reading about astronomy, planets, and galaxies.
I was drawn to astronomy by a teenage existential quest. Around 13, I was deep into wondering about the meaning of life and what I was doing here. I turned to religion, but that did nothing for me. I got to wondering where was here. So, I began studying astronomy and became enthralled by what I learned.
Becoming a scientist is a long journey, and at every step, I found projects that were exciting, motivating me to continue. My path was not straightforward - when I began studying physics in college, I had no idea I would end up studying asteroids; in fact, I never took an astronomy class.
My amateur interest in astronomy brought out the term 'magnitude', which is used for the brightness of a star.
This is very similar to astronomy where different magnitudes are assigned to the brightness of an astronomical object, depending on the range of wavelengths being measured.