At the National Solar Thermal Test Facility he's experimenting with getting them to hunt for asteroids at night.

Whatever their benefits, all solar power systems have one flaw in common – they don't work at night. Once the sun sets, that's it for the day. The system shuts down and generates zero power until sunrise the next day.

That's just a fact of life and engineering, but what if there was a way to get some useful work out of a solar plant when the stars are out? That was the question Sandusky wanted to answer when he began his tests at the National Solar Thermal Test Facility at Sandia National Laboratories in Albuquerque, New Mexico.