One of the great mysteries in astronomy has been why Venus has no moon. Now a new theory provides a simple answer: It might have been eaten.

Alt: Garak, a character from the TV show Star Trek: Deep Space Nine, who is a Cardassian, with reptile-like ridges on his face and neck, and grayish skin, dark hair, nods. The text "YES!!" appears in white letters on the GIF.

Air evacuations continued at the Grand Canyon in Arizona on Sunday afternoon, a day after a "significant flash flood."

Alt: Joni Mitchell, a white woman with long blonde hair wearing a pink dress, sings into a microphone and strums a guitar. The words on the GIF are "They paved paradise, put up a parking lot" from her song "Big Yellow Taxi"

Alt: a chubby cartoon penguin is dressed in a judge's white wig and a bow tie and sit's in a judge's seat, banging a gavel, with a serious expression on its face

Chantel Brooks, a 36-year-old woman, was last seen leaving a CVS store on July 17.