I haven’t posted any astronomical eye candy lately. It’s not that the internet world is lacking in such stuff. I really like this “movie” showing the rotation of the solar system’s largest planet. Would you believe scientists still don’t know what colors Jupiter’s clouds? Are they gases? Are they aerosols–the suspension of fine particles in the gas? We know Jupiter is almost all hydrogen and helium–two colorless substances. Small impurities in those two gases are responsible for the reds and browns, and the hints of orange and blue. I wonder what they are.
By the way, I thoroughly recommend putting the Astronomy Picture of the Day site on your browser’s favorites. It’s one of the first things I check when I get online in the morning.
