Then and Now: Apollo 11 astronaut Michael Collins talks to Apollo 11 and Artemis 1 Launch Teams in Firing Room 1 at Kennedy Space Center. http://www.nasa.gov/sites/default/files/thumbnails/image/michael_collins_in_lcc.jpg

In this black and white infrared image, the Soyuz rocket is seen as it transported to the launch pad by train, Thursday, July 18, 2019 at the Baikonur Cosmodrome in Kazakhstan. http://www.nasa.gov/sites/default/files/thumbnails/image/nhq201907180038.jpg

This photographic illustration compares the size of Apollo 11 Landing Site 2 with that of the metropolitan New York City area. http://www.nasa.gov/sites/default/files/thumbnails/image/s69-38669.jpg

This image shows the Command Service Module orbiting the Moon as Neil Armstrong and Buzz Aldrin explored the lunar surface. http://www.nasa.gov/sites/default/files/thumbnails/image/0901733_0.jpg

Christopher C. Kraft, Jr., who died July 22, 2019, created the concept of NASA's Mission Control and developed its organization, operational procedures and culture http://www.nasa.gov/sites/default/files/thumbnails/image/christopher-kraft-10people.jpg

The Apollo 11 Command Module is hoisted aboard the USS Hornet, the prime recovery vessel for the historic Apollo 11 lunar landing mission. http://www.nasa.gov/sites/default/files/thumbnails/image/s69_21783.jpg

A drone moves high above downtown Reno, Nevada on the afternoon of June 23, 2019 as part of NASA’s TCL-4 (Technology Capability Level) operation. http://www.nasa.gov/sites/default/files/thumbnails/image/tcl-4_reno-50-iotd.jpg

The sharply angled perspective in this Hubble image of spiral galaxy NGC 3169 makes it seem as if we, the viewers, are craning our necks to see over a barrier into the galaxy's bright center. In the case of NGC 3169, this barrier is the thick dust embedded within the galaxy's spiral arms. http://www.nasa.gov/sites/default/files/thumbnails/image/potw1929a.jpg

For NASA Wallops Flight Facility research pilot Rich Rogers, July 26 brought an end to one of the things in his life that he has greatly enjoyed – flying Navy and NASA aircraft. http://www.nasa.gov/sites/default/files/thumbnails/image/img9215.jpg

The Mediterranean coasts of Tunisia and Libya and the Italian island of Sicily across the sea are pictured as the International Space Station orbited 260 miles above north Africa. http://www.nasa.gov/sites/default/files/thumbnails/image/iss060e014848.jpg

This week in 1971, Apollo 15 became the first mission to use the Lunar Roving Vehicle. http://www.nasa.gov/sites/default/files/thumbnails/image/as15-88-11901orig.jpg

NASA astronaut candidate Raja Chari climbs into a NASA T-38 aircraft. http://www.nasa.gov/sites/default/files/thumbnails/image/48430853871_50230649e0_k_1.jpg

NASA's Solar Dynamic Observatory, or SDO, was the first mission to be launched for NASA's Living With a Star (LWS) Program, and is designed to understand the causes of solar variability and its impacts on Earth. http://www.nasa.gov/sites/default/files/thumbnails/image/latest_1024_0211.jpg

Our Curiosity rover has come a long way since touching down on Mars seven years ago. It has traveled a total of 13 miles (21 kilometers) and ascended 1,207 feet (368 meters) to its current location. http://www.nasa.gov/sites/default/files/thumbnails/image/pia23346-16.jpg

This new Hubble Space Telescope view of Jupiter, taken on June 27, 2019, reveals the giant planet's trademark Great Red Spot, and a more intense color palette in the clouds swirling in Jupiter's turbulent atmosphere than seen in previous years. http://www.nasa.gov/sites/default/files/thumbnails/image/stsci-h-p1936a-m-1999x2000.png

This galactic duo is known as UGC 2369. The galaxies are interacting, meaning that their mutual gravitational attraction is pulling them closer and closer together and distorting their shapes in the process. http://www.nasa.gov/sites/default/files/thumbnails/image/potw1931a.jpg

The Parker Solar Probe's WISPR instrument saw the solar wind streaming past during the spacecraft's first solar encounter in November 2018. http://www.nasa.gov/sites/default/files/thumbnails/image/parker-solar-probe-view-of-solar-wind-november-2018.png

The crew of the International Space Station snapped this image of a full Moon as the orbiting complex flew 270 miles above the South Pacific Ocean off the coast of South America. http://www.nasa.gov/sites/default/files/thumbnails/image/iss060e013471.jpg

Standing among dead black spruce trees in a burned area near Delta Junction, Richard Chen dug soil sampling pits throughout the burned area. http://www.nasa.gov/sites/default/files/thumbnails/image/img_4349.jpg

On August 13, 2019, NASA astronauts Doug Hurley, left, and Bob Behnken continue to work with teams from NASA and SpaceX to rehearse crew extraction from SpaceX’s Crew Dragon. http://www.nasa.gov/sites/default/files/thumbnails/image/48536461717_7fd6968d5f_k.jpg