Mayfield tweeted that he and his wife, Emily, were driving home from dinner in Texas when they witnessed a "very bright ball of light going straight down out of the sky."
Emily also tweeted about the experience, writing, "I won’t lie... I'm typically not someone who buys into UFO talk. But all I know is... I saw something tonight that I have never seen. And I'm a little thrown off."
As some people pointed out in Mayfield's replies, the sighting could be related to the SpaceX rocket prototype that was launched over south Texas on Wednesday and then exploded.