On this Photon Phrightday, Dr. Tom Neumann takes a look at a pass from ICESat-2 over the large shield volcano, Mount Terror, on Ross Island, Antarctica. NASA’s ICESat-2 mission measures the height of land, ice, and water by bouncing photons of light off their surfaces and timing how long it takes them to return to the spacecraft. Take a closer look at this fearful photon cloud...if you dare! Music: "The Body," Karl Casey @White Bat Audio, "Quantum Phantom," Universal Production Music Ryan Fitzgibbons (KBRWyle) Lead Producer Lead Editor Thomas Neumann (NASA GSFC) Lead Scientist Lead Interviewee Katy Mersmann (NASA GSFC) Project Support Aimée Gibbons (KBRwyle) Project Support This video can be freely shared and downloaded at https://svs.gsfc.nasa.gov/13301. While the video in its entirety can be shared without permission, the music and some individual imagery may have been obtained through permission and may not be excised or remixed in other products. For more information on NASA’s media guidelines, visit https://nasa.gov/multimedia/guidelines. If you liked this video, subscribe to the NASA Goddard YouTube channel: null Follow NASA’s Goddard Space Flight Center · Instagram http://www.instagram.com/nasagoddard · Twitter http://twitter.com/NASAGoddard · Twitter http://twitter.com/NASAGoddardPix · Facebook: http://www.facebook.com/NASAGoddard · Flickr http://www.flickr.com/photos/gsfc