NASA’s Juno spacecraft was racing away from Jupiter following its seventh close pass of the planet when JunoCam snapped this image on May 19, 2017, from about 29,100 miles (46,900 kilometers) above the cloud tops. via NASA http://ift.tt/2s9872E

NASA’s Cassini spacecraft sees bright methane clouds drifting in the summer skies of Saturn’s moon Titan, along with dark hydrocarbon lakes and seas clustered around the north pole. via NASA http://ift.tt/2sw5OYV

NASA astronaut Jack Fischer took this photograph of an American flag in one of the windows of the International Space Station’s cupola, a dome-shaped module through which operations on the outside of the station can be observed and guided. Throughout NASA’s history, spacecraft and launch vehicles have always been decorated with flags. via NASA http://ift.tt/2rsJ3EW

This artist illustration shows the thick ring of dust that can obscure the energetic processes that occur near the supermassive black hole of an active galactic nuclei. Researchers have found that the dust surrounding active, ravenous black holes is much more compact than previously thought. via NASA http://ift.tt/2sxGp0k

On May 29, 2017, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured the data for this image of an ongoing phytoplankton bloom in the Black Sea. The image is a mosaic, composed from multiple satellite passes over the region. via NASA http://ift.tt/2sl9b4F

This image from NASA’s Dawn spacecraft shows the northeastern rim of Urvara Crater on Ceres. via NASA http://ift.tt/2s50Q4c

In biology, “symbiosis” refers to two organisms that live close to and interact with one another. Astronomers have long studied a class of stars – called symbiotic stars – that co-exist in a similar way. Astronomers are gaining a better understanding of how volatile this close stellar relationship can be. via NASA http://ift.tt/2rI8dMJ

NASA’s 2017 astronaut candidates take a group photo at Ellington Field near Johnson Space Center. Pictured are, front row, left to right, Zena Cardman, Jasmin Moghbeli, Robb Kulin, Jessica Watkins, Loral O’Hara; back row, left to right, Jonny Kim, Frank Rubio, Matthew Dominick, Warren Hoburg, Kayla Barron, Bob Hines, and Raja Chari. via NASA http://ift.tt/2sE8SPl

NASA astronaut Jack Fischer tweeted this photograph from the International Space Station on June 3, 2017, writing, “Never had a corner office with a view, but I must admit, I like it… a lot! #SpaceRocks.” Fischer, a member of the 2009 astronaut class, has been living and working aboard the orbiting laboratory since April 20, 2017. via NASA http://ift.tt/2rQJJmL

From high above Saturn’s northern hemisphere, NASA’s Cassini spacecraft gazes over the planet’s north pole, with its intriguing hexagon and bullseye-like central vortex. via NASA http://ift.tt/2qUdTGt