Pho – a mission mascot created by the ICESat-2/SCAD Collaborative Student Program - is one of trillions of photons working on the ICESat-2 mission to bring back important measurements of Earth. Pho spends part of his time beaming down from the satellite and bouncing off Earth’s surfaces to take vital measurements of the height of surfaces like ice sheets and tree tops. Pho spends the other part of his time educating children and adults about the science and engineering of the mission and why it is important to study the ice-covered areas of our planet. Pho enjoys the excitement of his work and spreading the word about ICESat-2. He especially loves the view of Earth from way above as he is exiting the satellite and making his way downward. His favorite color is green.