by Ivan Couronne WASHINGTON, United States (AFP) — After a four-year journey, NASA’s robotic spacecraft Osiris-Rex briefly touched down on asteroid Bennu’s boulder-strewn surface on Tuesday to collect rock and dust samples in a precision operation 200 million miles (330 million kilometers) from Earth. The so-called “Touch-And-Go” or TAG maneuver was managed by Lockheed Martin Space in Denver, Colorado, where at 6:12 pm (2212 GMT) an announcer said: “Touchdown declared. Sampling is in progress,” and […]