Scientists analyzing data from one of Juno's flybys of Europa have calculated exactly how much oxygen is being generated on its surface, and the values are somewhat lower than previous estimates.

Europa's frozen, fissured surface, seen here in a colorized mosaic image from the Galileo spacecraft, hides a liquid ocean that may hold all the ingredients needed for life. Three key ingredients ...

10, SpaceX's Falcon Heavy will be lifting off from Cape Canaveral with one of NASA's largest space crafts ever built called ...