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

The second flight of NASA’s Ingenuity helicopter in the Martian atmosphere Thursday took the rotorcraft higher than its first hop. A third takeoff as soon as Sunday will take the helicopter more than 150 feet away from its makeshift airfield as engineers attempt more daring test flights.

A Japanese H-2A rocket launched at 5:58 p.m. EDT (2158 GMT) Sunday from the Tanegashima Space Center with the Emirates Mars Mission’s Hope orbiter, the UAE’s first probe to Mars.

Early Friday morning, the 8-million-pound mobile service tower was retracted from around the Atlas 5 rocket, revealing the 189-foot-tall vehicle for liftoff from Vandenberg Air Force Base, California, carrying the commercial WorldView 4 Earth-imaging satellite.