On July 20, 1969, the world watched as Neil Armstrong opened the hatch of the Eagle and stepped outside onto a barren lunar landscape, and coined the famous phrase "that's one small step for man, one giant leap for mankind".
Today, as the world celebrates the 47th anniversary of that historic moon landing, new research out reveals the moon's origins.
Auckland University Professor Kathy Campbell joined Ali Mau, filling in for Paul Henry, this morning.
