He earned his BA in physics from Cornell University in 1977 and his PhD from Columbia in 1983, with a thesis entitled "The Development of an Imaging Gas Scintillation Proportional Counter for Use in X-ray Astronomy."
[4] Hailey is also Principal Investigator and leader of the General Antiparticle Spectrometer (GAPS) experiments, for which he works on developing new Si(Li) detectors for X-ray detection.
[5] One of the aims of the project is to attempt to detect dark matter and elucidate its composition by sending a balloon-suspended apparatus to search for anti-deuterons in the cosmic rays.
[2] Hailey previously served as V/L-Division program leader for Space Science and Technology at the Lawrence Livermore National Laboratory, where he worked from 1986 to 1995.
[8] As part of a collaboration between researchers at Harvard and Columbia, Hailey worked on the EXIST All-Sky Sky Gamma-ray Survey mission study in 2000 at NASA's Goddard Space Flight Center.