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

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.

NASA has released an image of Saturn’s moons Enceladus and Tethys caught in a rare alignment by the Cassini spacecraft, which is heading for its final close encounter with the icy moon Enceladus Saturday.

Days after a fleeting plunge through the icy plumes of Saturn’s moon Enceladus, NASA’s Cassini spacecraft is broadcasting tantalizing data back to Earth for scientists eager to address the moon’s prospects for life.