NASA funds spherical 'Aerobots' that could explore the caves of Saturn's moon Titan

Spherical "Aerobots" may one day swarm the caves of Titan — a moon of Saturn that NASA says is one of the most Earthlike in our solar system.Titan is covered in rivers, lakes and seas of hydrocarbons, like methane and ethane, as well as a strange "karst" terrain including underground sinkholes and caves. No rover could easily traverse this surface, but flying vehicles may have more success.So a new grant, under the early-stage NASA Innovative Advanced Concepts (NIAC) program, aims to creat