A prototype drone being tested by Nasa comes equipped with ten different engines in an attempt to make the technology's trademark buzz a little quieter.
The asteroid zoomed by Earth at a perfectly safe distance of around 1.8 million miles (2.9 kilometers).
Engineers expect to lose contact with the private US moon lander Odysseus on Tuesday, cutting short the mission after its sideways touchdown last week.
NASA announced Tuesday that a $32.7 million Capstone spacecraft intended to try out a skewed lunar orbit had lost contact, but agency engineers are confident
