McGill  University
High-Energy  Light Isotope eXperiment (HELIX) — PI: Dr. David  Hanna. The HELIX project will measure the energetic particles  bombarding Earth, known as cosmic rays, using a detector carried to an altitude  of 45 km by a stratospheric balloon launched from the coast of Antarctica. The  flight will result in data that will lead to a deeper understanding of the  magnetic fields and interstellar material in our region of the Milky Way Galaxy.  In particular, it will help determine the origin of the rising fraction of  energetic antimatter which has been found in the cosmic rays.