November 19, 2017

Astro-Vid of the Week: The First Airborne Observatory

Keck revisits the rings of Uranus.

Credit: NASA/JPL

I still remember the announcement, 40 years ago today.

Of course, news flowed lots slower in those days, so my eight year old self caught it days later, on one of those news shorts they would run between Saturday morning cartoons. Uranus, it turned out, has a ring system, the first planet other than Saturn known to possess such as feature. I dutifully went to the solar system chart I’d drawn in third grade, and spent the rest of the morning updating a lop-sided Uranus with a ring system all its own. [Read more...]