-
Now Playing: Trump: CEOs leaving council 'out of embarrassment'
-
Now Playing: NASA helicopter makes 2nd flight on Mars
-
Now Playing: Amazon expands palm-scanning technology to Whole Foods
-
Now Playing: Women join fight against climate change
-
Now Playing: Robot barman serves up cocktails for pandemic era
-
Now Playing: Apple unveils new generation of products
-
Now Playing: Facebook announces live audio rooms
-
Now Playing: ‘Perseverance’ rover captures historic flight on Mars
-
Now Playing: Learn from two NASA engineers about how they sent both a rover and helicopter to Mars
-
Now Playing: ‘Grey’s Anatomy’ star Jesse Williams wants you to ‘BeGreat’
-
Now Playing: Teen battling bone cancer surprised with "pet" dragon
-
Now Playing: ABC News Live Update: Attorneys give closing statements in trial of Derek Chauvin
-
Now Playing: Deadly Tesla crash near Houston
-
Now Playing: Pet gadgets
-
Now Playing: NASA is making history with "Ingenuity," the space agency's helicopter on Mars.
-
Now Playing: Virtual game-playing platform Roblox is developing content rating for games
-
Now Playing: Google’s new time-lapse feature shows the effects of climate change
-
Now Playing: Instagram adds options to likes feature
-
Now Playing: Apple to launch new products April 20
-
Now Playing: FCC offers more accurate picture of nation’s broadband capability