4: Discover the next big astronomical phenomena on your home computer. Einstein@Home uses your computer's idle time to search for weak astrophysical signals from spinning neutron stars (also called pulsars) using data from the LIGO gravitational-wave detectors, the Arecibo radio telescope, and the Fermi gamma-ray satellite. Much of the data needing processing is generated by the Arecibo Observatory shown here.
NAIC - Arecibo Observatory
National Science Foundation