The Indian Cabinet has granted in-principle approval to the Laser Interferometer Gravitational-wave Observatory in India (LIGO-India) Project. The project will build an Advanced LIGO Observatory in India, a move that will significantly improve the ability of scientists to pinpoint the sources of gravitational waves and analyze the signals.
Built to look for gravitational waves, the ripples in the fabric of space itself that were predicted by Einstein in 1915, the Laser Interferometer Gravitational-Wave Observatory (LIGO) is the most ambitious project ever funded by the National Science Foundation. We talk to two Caltech researchers to learn about how LIGO came to be.
Caltech, JPL, and NIST researchers have developed a simple, cost-effective laser frequency comb, potentially simplifying measurements of the telltale "wobbles" from stars that reveal the presence and properties of planets around other stars.