Q&A with Scott Bolton, principal investigator on NASA’s Juno mission

Making its fifth science pass close to Jupiter’s turbulent cloud tops, NASA’s Juno spacecraft sailed by the solar system’s king planet Friday to collect another treasure trove of data on the giant world’s atmosphere, internal structure, and magnetic field.

NASA’s Juno spacecraft, running on solar power more than 500 million miles from the sun, is on final approach for a Fourth of July arrival at Jupiter for a year-and-a-half campaign of exploration.

NASA’s Mars Pathfinder probe dropped to the surface of Mars for an airbag-cushioned landing 20 years ago Tuesday, bouncing 15 times across an ancient flood plain before deploying a mobile robot to usher in two decades of uninterrupted Martian exploration.