Also on the Culham Science Centre at Clifton Hampden is the United Kingdom Atomic Energy Authority, and the re-usable Skylon spacecraft is being developed by Reaction Engines Limited; ABSL Space Products Culham (owned by EnerSys) made batteries for Philae. The Rutherford Appleton Laboratory and Diamond Light Source (built by the Wellcome Trust) are on the Harwell Science and Innovation Campus in Chilton and East Hendred. Harwell has an office of Telespazio VEGA UK (satellites) and the UK's base of the European Space Agency (ESA), with the European Centre for Space Applications and Telecommunications and the UK's Satellite Applications Catapult; Rutherford Appleton also has the Central Laser Facility, the UK's site of research into inertial confinement fusion power from the HiPER project.