CERN operates a network of six accelerators and a decelerator. Adler is currently the project chief of the Low Density Supersonic Decelerator. ATHENA was an antimatter research project that took place at the Antiproton Decelerator. Upon slowing to Mach 3.8, the tube-shaped Supersonic Inflatable Aerodynamic Decelerator (SIAD-R configuration) deployed. Low energy antiproton research continues at CERN using the Antiproton Decelerator. The Antiproton Decelerator (AD) is a storage ring at the CERN laboratory near Geneva. In his first appearance, the first Scavenger was looking for something called the Time Decelerator. Upon slowing to Mach 4.08, the tube-shaped Supersonic Inflatable Aerodynamic Decelerator (SIAD-R configuration) deployed. Its landing system is proposed to employ an inflatable aeroshell decelerator, and an airbag. SkyJump Las Vegas is a controlled decelerator descent. Molecules can be decelerated in a Stark decelerator or in a Zeeman slower. She uses time-varying inhomogeneous electric fields (in a Stark decelerator) to achieve supersonic cooling. Stapp's research on the decelerator had profound implications for both civilian and military aviation. A deployable decelerator like a parachute can slow down a spacecraft after a heat shield. The original decelerator can still be seen on display in Moab, Utah.