Funding for this research was provided by:
National Aeronautics and Space Administration (NNX14AM70G)
National Aeronautics and Space Administration (NNX13AD80G)
National Aeronautics and Space Administration (80NSSC18K0766)
National Aeronautics and Space Administration (80NSSC18K1342)
National Aeronautics and Space Administration (NNX14AM70G)
National Aeronautics and Space Administration (NNX13AD80G)
National Aeronautics and Space Administration (80NSSC18K0766)
National Aeronautics and Space Administration (80NSSC18K1342)
National Aeronautics and Space Administration (NNX14AM70G)
National Aeronautics and Space Administration (NNX13AD80G)
National Aeronautics and Space Administration (80NSSC18K0766)
National Aeronautics and Space Administration (80NSSC18K1342)
National Science Foundation (1643468)
National Science Foundation (1643468)
National Science Foundation (1643468)
Article History
Received: 8 January 2019
Accepted: 28 September 2019
First Online: 30 October 2019
Competing interests
: The authors declare no competing interests.