A large ring around the Sun or Moon is called a halo. What causes halos? Do halos tell us something about the weather? Bob explains these fascinating phenomena.
About this Podcast
Listen to a weekly freewheeling exploration of the astonishing world of science! What’s the most inexplicable object in the cosmos? When is Doomsday coming? The heaviest thing in the universe? Nikola Tesla’s dark secret? All this and more, each week on Astounding Universe podcast with Bob Berman, astronomer for The Old Farmer’s Almanac.