The flyby of Earth reduced Juice’s speed by 10,737 miles per hour (4.8 kilometers per second) to set it on the path toward Venus and will save the mission around 220 to 330 pounds (100 to 150 ...

The agency has scheduled another close flyby of Io for Feb. 3, when Juno is again expected to pass at about the same distance from the moon's surface as it did Saturday. Juno's mission is set to ...

During the Dec. 24 sun flyby, the Parker Solar Probe will fly through the sun's corona, its super-hot outer atmosphere, to study exactly why the region is so hot and other solar phenomena.