How can we bring rocks back from Mars?
How can we bring rocks back from Mars?  
Podcast: Daniel and Kelly’s Extraordinary Universe
Published On: Tue Sep 29 2020
Description: How many robots does it take to dig up rocks from Mars and deliver them back to Earth? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.