The Concept for the LISA Space Based
Interferometer
Is Einstein's Theory of Gravity Right?
Can gravity waves probe known high energy phenomena such as binary
pulsars, supernovae, gamma-ray busters, etc.?
Is there a cosmic background of gravity waves?
How do supermassive black holes in galaxies swallow up stars?
What is the geometry of space and time in the vicinity of a black hole?
X-ray spectral line emission serves as a probe of matter close to the
event horizon of a black hole, thereby providing key characteristics of
the object and information about strong gravity effects needed to test
general relativity.