A Nasa probe, which has gathered dust and rocky fragments from an asteroid called Bennu, has safely landed on Earth.<br /><br />It is hoped the material could tell Nasa how life on Earth began.<br /><br />The spacecraft, Osiris-Rex, has remained in space after releasing the capsule containing the samples.<br /><br />That capsule, which came streaking into Earth's atmosphere at more than 15 times the speed of a rifle bullet, descended into Utah's West Desert with the help of a parachute.<br />
