This photograph of the Lunar Module at Tranquility Base was taken by Neil Armstrong during the Apollo 11 mission, from the rim of Little West Crater on the lunar surface. Armstrong’s shadow and the shadow of the camera are visible in the foreground. This is the furthest distance from the lunar module traveled by either astronaut while on the moon. via NASA http://ift.tt/2tiLhDM

A medium-sized (M2) solar flare and a coronal mass ejection erupted from the same, large active region of the sun on July 14, 2017. The flare lasted almost two hours, quite a long duration. The coils arcing over this active region are particles spiraling along magnetic field lines. via NASA http://ift.tt/2uJ7lf4

When astronauts return to Earth from destinations beyond the moon in NASA’s Orion spacecraft and splashdown in the Pacific Ocean, they’ll still need to safely get out of the spacecraft and back on dry land. Using the waters off the coast of Galveston, a NASA and Department of Defense team tested Orion exit procedures on July 10-14, 2017. via NASA http://ift.tt/2vefiGn

Neil Armstrong trained for the Apollo 11 mission at NASA Langley’s Lunar Landing Research Facility on equipment that cancelled all but one-sixth of Earth’s gravitational force. Armstrong offered perhaps the greatest tribute to the importance of his training when asked what it was like to land on the moon, replying, “Like Langley.” via NASA http://ift.tt/2tjeylH

NGC 2500 is a particular kind of spiral galaxy known as a barred spiral, its wispy arms swirling out from a bright, elongated core. via NASA http://ift.tt/2tU0IDG

This enhanced-color image of Jupiter’s Great Red Spot was created by citizen scientist Gerald Eichstädt using data from the JunoCam imager on NASA’s Juno spacecraft. via NASA http://ift.tt/2tQeNll

This year, NASA is celebrating the 100th anniversary of the agency’s Langley Research Center in Hampton, Virginia. In Langley’s early years of crafting flight, aviation pioneers flocked to the center for engineering conferences. This photo was taken in Langley’s Full Scale Tunnel during the 1934 Aircraft Engineering Research Conference. via NASA http://ift.tt/2sQ4IDO

On May 29, 2017, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this image of ice covering the Amundsen Gulf, Great Bear Lake, and numerous small lakes in the northern reaches of Canada’s Northwest Territories and Nunavut. Icy lakes and rivers make a significant footprint on the Arctic landscape. via NASA http://ift.tt/2tJZ0om

The light of a new day on Saturn illuminates the planet’s wavy cloud patterns and the smooth arcs of the vast rings. via NASA http://ift.tt/2sWYfeq

Wind is a force to be reckoned with. It can stir up monsoons, carry dust thousands of miles, and sculpt rock into sinuous arches. But sometimes, the effects of wind go unnoticed for years, like when it carves away slowly at the edges of a pond. via NASA http://ift.tt/2suFpH8