About us

Einstein@Home is a World Year of Physics 2005 and an International Year of Astronomy 2009 project. It is supported by the American Physical Society (APS), the US National Science Foundation (NSF), the Max Planck Society (MPG), and a number of international organizations.

Einstein@Home uses your computer's idle time to search for weak astrophysical signals from spinning neutron stars (often called pulsars) using data from the LIGO gravitational-wave detectors, the MeerKAT radio telescope, the Fermi gamma-ray satellite, as well as archival data from the Arecibo radio telescope. Einstein@Home volunteers have already discovered more than 90 new neutron stars, and we hope to find many more.

Our long-term goal is to make the first direct detections of gravitational-wave emission from spinning neutron stars. Gravitational waves were predicted by Albert Einstein a century ago, and were directly seen for the first time on September 14, 2015. This observation of gravitational waves from a pair of merging black holes opens up a new window on the universe, and ushers in a new era in astronomy.

This first direct measurement was made shortly after the advanced LIGO instruments came online following a major five-year upgrade. Since then, these advanced detectors have taken data in three observing runs of increasing sensitivity, resulting in the discovery of more than 90 mergers of black holes and neutron stars. Since May 2023, the fourth and most sensitive observing run has been underway and is expected to add about 200 gravitational-wave observations before it ends in early 2025.

To learn more about Einstein@Home, please explore the links under "Publications" above. Selected media coverage of our project and our discoveries is available under "Press". More in-depth information on our searches is available under "Data Analysis".

Thank you for your interest. If you want to participate, please follow the "Join Now" instructions. It takes just a minute or two to sign up, and little or no maintenance to keep Einstein@Home running. Einstein@Home is available for Windows, Linux and Apple macOS computers, and Android devices.

Bruce Allen Director of Einstein@Home; Director, MPI for Gravitational Physics, Hannover; Professor of Physics, U. of Wisconsin - Milwaukee