“Observations of interstellar objects are still rare enough that we learn something new on every occasion,” said Shane Byrne, principal investigator for the HiRISE camera aboard NASA’s Mars ...

NASA's Juno spacecraft made a close flyby of Jupiter moon lo. See an animation of the images the probe captured created by ...

On March 8, 1979, NASA's Voyager 1 spacecraft discovered active volcanoes on Jupiter's moon Io. [‘On This Day in Space’ Video ...