NASA said on Thursday that it has found evidence of an ancient stream that once existed on Mars.
Water was once flowing in the area the Mars Curiosity Rover is investigating at about "3 feet per second," according to a statement from NASA. The stream is believed to be between ankle and hip deep.
NASA released pictures along with the announcement as evidence of the ancient stream's existence. See those images below, along with explanations beside them.
Click here to read more on the evidence of the ancient stream on Mars.