SIX DAYS IN AUGUST This historical drama looks at the succession crisis that gripped the Church of Jesus Christ of Latter-day Saints after its prophet Joseph Smith was killed by a mob. Starring John Donovan Wilson, Paul Wuthrich and Noah Kershisnik. PG-13 (for some violence). 123 mins. At Cinemark Legacy in Plano.

A rare comet, visible once every 80,000 years, graced the Texas sky last night. How's how to see it again this week and how it got its name.

First Alert meteorologist Scott Padgett explains how to get a once-in-a-lifetime glimpse of the comet Tsuchinshan-ATLAS, which won't be visible again from Earth for 80,000 years.