Three spacecraft, including one at Mars, teamed up to make a unique deep-space observation of a colossal energy burst. The Earth-orbiting satellite BeppoSAX, the solar-spying Ulysses, and NASA’s Mars Odyssey combined to detect a brief yet intense gamma ray burst. The trio of observations was the first of its kind. With three observations, scientists can “triangulate” the location and distance of an object. The accuracy of the measurements becomes greater when the distance between the crafts grows.