Is LISA more than just a niche mission for relativists?
• LISA results will be of strong value to astronomers and cosmologists interested in the initial growth of structure in the universe, as well as to many other astrophysicists. Ground-based gravitational wave detectors are likely to provide strong new tests of the predictions of general relativity under strong field conditions, and LISA will provide even stronger tests. However, such tests are only one of the four main scientific objectives of LISA.