Plugging Away Inside Massive SLS Fuel Tank: Welders Complete Final Plug Fusion Welds on SLS Liquid Hydrogen Tank

Welders inside a large liquid hydrogen tank for NASA's Space Launch System at the Michoud Assembly Facility in New Orleans are plugging holes left after the tank was assembled. via NASA http://ift.tt/2b3ycaU

Supernova Ejected from the Pages of History

A new look at the debris from an exploded star in our galaxy has astronomers re-examining when the supernova actually happened. via NASA http://ift.tt/2aZURrp

Lake Powell From the Space Station's EarthKAM

The remotely controlled Sally Ride EarthKAM aboard the International Space Station acquired this photograph on July 14, 2016, as the orbiting laboratory flew over Lake Powell and the border of Utah and Arizona. Located on the Colorado River, Lake Powell is the second largest artificial reservoir in the United States. via NASA http://ift.tt/2bfc1Mp

Astronauts Kate Rubins and Jeff Williams Prepare For a Spacewalk

Expedition 48 crew members Kate Rubins (left) and Jeff Williams (right) of NASA outfit spacesuits inside of the Quest airlock aboard the International Space Station. Rubins and Williams will conduct a spacewalk on Friday, Aug. 19, 2016, to install a new docking port that will enable the future arrival of U.S. commercial crew spacecraft. via NASA http://ift.tt/2bsR1DP

Perseid Meteor Shower 2016 from West Virginia

In this 30 second exposure, a meteor streaks across the sky during the annual Perseid meteor shower Friday, Aug. 12, 2016 in Spruce Knob, West Virginia. via NASA http://ift.tt/2aMxaNq

Site of 2016 Summer Olympic Games Viewed by NASA's MISR Instrument

The Multi-angle Imaging SpectroRadiometer (MISR) instrument aboard NASA's Terra satellite passed directly over Rio de Janeiro on Aug. 2, 2016, just prior to the opening of the Summer Olympic Games. On the left is an image from MISR's nadir camera; on the right, a map of aerosol optical depth. via NASA http://ift.tt/2b8hQMb

A Black Hole Story Told by a Cosmic Blob and Bubble

Two cosmic structures show evidence for a remarkable change in behavior of a supermassive black hole in a distant galaxy. via NASA http://ift.tt/2b8yFuc