Space junk - thousands of debris objects are hurtling around the earth with the potential of crashing into one another. As we launch more satellites, the risk of a satellite colliding with another satellite or a piece of space junk increases, threatening those satellite services we depend on. John Henderson, remote sensing scientist at Lawrence Livermore National Laboratory reviews the many ways we use satellites, how space collisions happen, how much of a danger space collisions are, and what can be done to prevent space collisions.

Speaker Bios

Dr. John Henderson

Dr. John Henderson is a remote sensing scientist at Lawrence Livermore National Laboratory. He leads the Space Systems Group in the Global Security Directorate. He has worked on weather satellites, nano-satellites, ion accelerators, and a cloud LIDAR. His publications and research interests include low-temperature solid state physics, atomic physics, optical remote sensing, laser communication, remote sensing for treaty verification, and technologies for space situational awareness. He collaborates with the CTBT Organization on treaty work, and the Naval PostGraduate School, Air Force Research Laboratory and other DOE labs on the space situational awareness work. He has a B.S. in Engineering Physics from the Colorado School of Mines, and a M.S. and Ph.D. in Physics from Stanford University.