Astronomers are watching what may be the formation of a new moon around a young planet 400 light years away. CAI's John Basile talks with Dr. Regina Jorgenson of the Maria Mitchell Observatory on Nantucket about how this could inform what we know about the formation of the Earth's moon.
Looking Skyward: A New Moon In A Distant Solar System

ALMA (ESO / NAOJ / NRAO) / Benisty et al.