The versatile Canadarm2 robotic arm is poised to grapple and remove the HTV-9 resupply craft from the space station's Harmony module. http://www.nasa.gov/sites/default/files/thumbnails/image/iss063e070805.jpg

We're celebrating National Aviation Day! After all, we are the National Aeronautics and Space Administration. Aviation and aeronautics are as much a part of our mission as space travel. http://www.nasa.gov/sites/default/files/thumbnails/image/13_duensing_j_sc19_propellerslice_v0_no_label.png

Hurricane Genevieve is pictured off the Pacific coast of Mexico from the International Space Station. http://www.nasa.gov/sites/default/files/thumbnails/image/iss063e074377.jpg

Galaxy NGC 2442, seen here by the Hubble Space Telescope, is nicknamed the Meathook galaxy owing to its extremely asymmetrical and irregular shape. http://www.nasa.gov/sites/default/files/thumbnails/image/potw2033a.jpg

In this image, one of the radiation detectors for the Radi-N2 experiment floats in the space station. This device will help researchers explore the radition risk to humans in space. http://www.nasa.gov/sites/default/files/thumbnails/image/2_iss035e031921_0.jpg

A newly discovered, roughly Earth-sized planet orbiting our nearest neighboring star might be habitable, according to a team of astronomers using the European Southern Observatory's 3.6-meter telescope at La Silla, Chile. http://www.nasa.gov/sites/default/files/thumbnails/image/proximasurface.jpg

What does this Fermi Gamma-ray Space Telescope Spirograph have in common with Women's Equality Day? http://www.nasa.gov/sites/default/files/images/730451main_8512394775_7777461351_o-full_full.jpg

In this large celestial mosaic taken by NASA's Spitzer Space Telescope and published in 2019, there's a lot to see, including multiple clusters of stars born from the same dense clumps of gas and dust. http://www.nasa.gov/sites/default/files/thumbnails/image/pia23126-1041.jpg

As the International Space Station orbited more than 200 miles above our home planet, the crew caught this glimpse of the sunrise casting long shadows over a cloudy Philippine Sea. http://www.nasa.gov/sites/default/files/thumbnails/image/iss063e076166.jpg

NASA's Mars Pathfinder mission landed on the Red Planet on July 4, 1997. It's tiny rover, named Sojourner after abolitionist Sojourner Truth, spent 83 days of a planned seven-day mission exploring the Martian terrain. http://www.nasa.gov/sites/default/files/thumbnails/image/pia02406.jpg

The first solid rocket booster test for Space Launch System (SLS) missions beyond Artemis III seen here during a two-minute hot fire test, Wednesday, September 2, 2020, at the T-97 Northrop Grumman test facility in Promontory, Utah. http://www.nasa.gov/sites/default/files/thumbnails/image/sls_booster_test_horizontal.jpg

The Nancy Grace Roman Space Telescope’s primary mirror, which will collect and focus light from cosmic objects near and far, has been completed. http://www.nasa.gov/sites/default/files/thumbnails/image/pm10.jpg

Star Trek debuted 54 years ago on Sept. 8, 1966. http://www.nasa.gov/sites/default/files/thumbnails/image/ec76-5806.jpg

Not every flight director is a legend, but some are. Take Eugene Kranz, for example. http://www.nasa.gov/sites/default/files/images/589229main_s65-22203_full.jpg

Globular cluster NGC 1805, a tight grouping of thousands of stars is, located near the edge of the Large Magellanic Cloud, a satellite galaxy of our own Milky Way. In the dense center of one of these clusters, stars are 100 to 1,000 times closer together than the nearest stars are to our Sun. http://www.nasa.gov/sites/default/files/thumbnails/image/potw2036a.jpg

During her first mission to space and to the International Space Station, Kate Rubins became the first person to sequence DNA in space. http://www.nasa.gov/sites/default/files/thumbnails/image/iss049e050595.jpg

Dr. Frank Rubio was selected by NASA to join the 2017 Astronaut Candidate Class. He reported for duty in August 2017 and having completed the initial astronaut candidate training is now eligible for a mission assignment. http://www.nasa.gov/sites/default/files/thumbnails/image/48466987012_c8581e9061_6k.jpg

NASA's Aqua satellite captured this true-color image of the United States on Sep. 15, 2020, showing the fires in the West, the smoke from those fires drifting over the country, several hurricanes converging from different angles. http://www.nasa.gov/sites/default/files/thumbnails/image/fires-smoke-hurricanes.jpg

A unique and exciting detail of Hubble’s snapshot appears at mid-northern latitudes as a bright, white, stretched-out storm traveling around the planet at 350 miles per hour. http://www.nasa.gov/sites/default/files/thumbnails/image/stsci-h-p2042a-f-1663x1663.png

Then-NASA Johnson Space Center deputy director Ellen Ochoa poses for a photo with Robonaut 2 (R2) during media day in the Space Vehicle Mock-up Facility on Aug. 4, 2010. http://www.nasa.gov/sites/default/files/thumbnails/image/ellen_ochoa_with_robonaut2.jpg