
The topic: Rings of Uranus
It's been a while since I've had an astronomy class, and I've had many more classes since then, so I'm going to consult wikipedia and see what I find.....
The rings were discovered in 1977 although possibly even in the 1700s. I find this to be just incredible, Uranus is soooooo very far away and yet we know that it has rings! It's amazing!
Uranus is 2.57 BILLION km from the Earth, at its closest; yet we know that it has 13 rings and what the thickness and width is of each ring. Flabbergasting.
Considered to be young by astronomical standards, the rings of Uranus are about 600 million years old. Talk about hard to comprehend, 600 million years! Wanna feel young again? Study astronomy.