How Did Earth Get Its Water? If water just keeps getting recycled by a closed system on Earth, how did it get here in the first place? Where did the cycle begin? Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Can you solve the control room riddle? Engineering + Biology = Synthetic Biology How Exactly Does Smoking Kill? How Far Away Can You Get From Everybody Else? NASA has no protocol for dealing with intelligent aliens Can Bacteria Live Off Electricity?