Watch a video replay of NASA’s exoplanet announcement

In the final hours of its pioneering mission, NASA’s Cassini spacecraft opened its cameras to gaze down on Saturn, recording views of a nighttime cloudscape illuminated by sunlight reflected off countless tiny ice particles in the planet’s rings.

The nuclear power generator for NASA’s Perseverance rover has been installed on the spacecraft atop an Atlas 5 rocket at Cape Canaveral, and mission managers gave a green light Wednesday to continue preparations for the rover’s July 30 launch toward Mars.

A SpaceX Dragon cargo ship caught up with the International Space Station early Monday and then stood by while Canadian astronaut David Saint-Jacques, operating the lab’s robot arm, locked onto the spacecraft to wrap up a two-day rendezvous.