Webb Telescope Set for Testing in Space Simulation Chamber

NASA’s James Webb Space Telescope sits in front of the door to Chamber A, a giant thermal vacuum chamber located at NASA’s Johnson Space Center. The telescope will soon be moved into the chamber, where it will spend a hot Houston summer undergoing tests at sub-freezing cryogenic temperatures. via NASA http://ift.tt/2sKRZWE

from WordPress http://ift.tt/2tFgErR

Jupiter’s Clouds of Many Colors

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

from WordPress http://ift.tt/2s9atyu

Northern Summer on Titan

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

from WordPress http://ift.tt/2tquDBF

Celebrating Flag Day

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

from WordPress http://ift.tt/2riiHRY

Illustration of Cool Dust Around an Active Black Hole

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

from WordPress http://ift.tt/2spmL73

Turquoise Swirls in the Black Sea

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

from WordPress http://ift.tt/2sux6hT

Pongal Catena on Ceres

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

from WordPress http://ift.tt/2rUY13M