Beyond Earth, there are likely other oceans in our solar system.
Planetary scientists suspect Jupiter's cracked, ice-blanketed moon Europa harbors a particularly voluminous sea, some 40 to 100 miles deep. Now, for just the third time ever, a spacecraft flew by the icy moon, swooping just 219 miles from Europa's surface. The other two flybys happened over two decades ago. NASA's Juno spacecraft, famous for its dazzling views of Jupiter's roiling clouds, captured some of the clearest images of Europa ever seen, which you can see below.
Image: A new, grandiose view of Jupiter's moon Europa. Credit: NASA / JPL-Caltech / SWRI / MSSS
