NASA probe to touch down on Mars today Video

  • Now Playing: Historic mission to Mars


  • Now Playing: NASA Successfully Fires Rocket Designed for Deep Space Missions




  • Now Playing: NASA probe to touch down on Mars today




  • Now Playing: Experts say this Cyber Monday could be biggest shopping day in history




  • Now Playing: Apple’s worldwide 4-day shopping event has gone live




  • Now Playing: Thanksgiving and Black Friday deals for TVs are on the way




  • Now Playing: Glamour magazine is going digital




  • Now Playing: Let the bargain hunting begin




  • Now Playing: Best apps to score deals for Black Friday




  • Now Playing: We tried the compression bodysuit that celebs are using to tone up




  • Now Playing: Could regulation be coming to Silicon Valley?




  • Now Playing: The ‘GMA Day’ audience plays a hilarious game of ‘cell phone scavenger hunt’




  • Now Playing: Are robots taking over the world? ‘GMA Day’ breaks it down in the ‘Robot Roundup’




  • Now Playing: Facebook executive denies blocking investigations into election meddling




  • Now Playing: Apple investigating complaint iPhone X overheated and caught fire




  • Now Playing: Uber and Lyft to face competition from Waymo




  • Now Playing: Facebook, WhatsApp, Instagram suffer temporary outage




  • Now Playing: Limes may be lemons




  • Now Playing: Black Friday ads released early