NASA spacecraft touches asteroid 321 million kms away to collect sample

NASA's OSIRIS-REx spacecraft successfully unfurled its robotic arm and briefly touched asteroid Bennu to collect dust and pebbles from the surface for delivery to Earth in 2023. The well-preserved, ancient asteroid is currently more than 321 million kilometres from Earth. The spacecraft has been in orbit around the asteroid for nearly two years preparing for the "touch and go" manoeuvre.