Video: Rosetta scientist Matt Taylor on the end of mission

NASA has decided to launch the multibillion-dollar Europa Clipper mission — a spacecraft to study a moon of Jupiter with an icy crust covering a liquid water ocean — aboard a commercial heavy-lift rocket in October 2024, and not on the government-owned Space Launch System, officials said Wednesday.

Russian cosmonaut Oleg Novitskiy, French-born European Space Agency flight engineer Thomas Pesquet and veteran NASA astronaut Peggy Whitson put on their Sokol spacesuits, boarded their Soyuz capsule and blasted into orbit Thursday from the Baikonur Cosmodrome in Kazakhstan. Check out photos of their launch day activities.

NASA’s Juno spacecraft fine-tuned its orbit around Jupiter this week, helping steer the spinning space probe on a course to dip beneath the giant planet’s radiation belts in late August for the first time with all its science instruments activated.