Alvin will help scientists unlock ocean mysteries 4 miles deep
By Ashley Strickland, CNN Renowned explorer Robert Ballard has scoured the deep sea for decades in search of its mysteries. Fascinated by Jules Verne's "Twenty Thousand Leagues Und…
By Ashley Strickland, CNN Renowned explorer Robert Ballard has scoured the deep sea for decades in search of its mysteries. Fascinated by Jules Verne's "Twenty Thousand Leagues Und…