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LIGO's Laser-Packing Big Sister LISA May Hunt Black Holes From Space

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Science  21 Apr 2000:
Vol. 288, Issue 5465, pp. 422
DOI: 10.1126/science.288.5465.422

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Within 10 years, three satellites may orbit far from Earth in a precise triangular formation, aiming lasers at each other. Its proponents call it LISA: the Laser Interferometer Space Antenna, a $500 million gleam in the eyes of astrophysicists in the United States and Europe. It's the next possible step in the search for gravitational waves (see main text).