Q&A with Jonathan Lunine on Enceladus’ prospects for life

NASA officials announced Thursday that the agency will move forward with the development of a plutonium-powered robotic quadcopter drone to explore Saturn’s moon Titan, a hazy world covered with dunes and methane lakes that scientists say is reminiscent of the ancient Earth.

SpaceX’s billionaire founder and chief executive Elon Musk spoke with reporters just after successfully landing a Falcon 9 booster for the first time.

Scott Bolton of the Southwest Research Institute leads the science team on NASA’s Juno mission, a robotic spacecraft now on final approach to Jupiter designed to probe the giant world’s deep interior and unravel how the solar system’s king planet formed.