Sissa in the LISA Mission in search of gravitational waves. LISA satellites will follow the Earth in its orbit around the Sun, forming an equilateral triangle in space.
The configuration will allow a precise exchange of laser beams between the spacecraft. The beams will reveal, thanks to minute variations in the distance between the satellites, the passage of gravitational wave, caused by cosmic events such as the merger of black holes or supernova explosions. SISSA will observe black holes millions of times heavier than the Sun until the albacosmic, when the first galaxies formed.