Pilot Stu Broce is pre-breathing 100% oxygen prior to take off for an Air-LUSI flight at NASA’s Armstrong Flight Research Center.

How do you measure a cloud? Tim Bencic does it with lasers. The NASA Glenn engineer invented a tomography system for our Propulsion Systems Lab to help understand the dangers of ice crystal icing on airplanes. Bencic’s system, affectionally called “Tim-ography” is like a CAT Scan. The laser light within its circular geometry bounces off the surface of ice particles in the cloud and fiber optic detectors map out its properties. This tool is helping NASA’s researchers make aircraft safer in challenging weather conditions.

NASA astronaut Tracy Caldwell Dyson pauses for a portrait while donning her spacesuit and going under water in the Neutral Buoyancy Lab, Monday, July 8, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

The Northrop Grumman Antares rocket, with Cygnus resupply spacecraft onboard, launches from Pad-0A, Wednesday, April 17, 2019 at NASA's Wallops Flight Facility in Virginia. Northrop Grumman's 11th contracted cargo resupply mission for NASA to the International Space Station will deliver about 7,600 pounds of science and research, crew supplies and vehicle hardware to the orbital laboratory and its crew. Photo Credit: (NASA/Bill Ingalls)