When SpaceX's Crew Dragon spacecraft lifts off on its first operational mission to the International Space Station, NASA astronaut Victor Glover will be aboard. http://www.nasa.gov/sites/default/files/thumbnails/image/32318922958_528cbd3f50_o.jpg

The powerful wind from the newly formed star at the heart of the Orion Nebula is creating the bubble and preventing new stars from forming. http://www.nasa.gov/sites/default/files/thumbnails/image/orion-bubble.png

Astronaut Buzz Aldrin salutes after being introduced at the 2019 State of the Union address. http://www.nasa.gov/sites/default/files/thumbnails/image/020519-js4-1602.jpg

Vice President Mike Pence visits the Space Shuttle Challenger Memorial after a wreath laying ceremony that was part of NASA's Day of Remembrance, Thursday, Feb. 7, 2019, at Arlington National Cemetery in Arlington, Va. http://www.nasa.gov/sites/default/files/thumbnails/image/32079236047_1d7fa79e68_k.jpg

Mary Jackson began her engineering career in an era in which female engineers of any background were a rarity. http://www.nasa.gov/sites/default/files/thumbnails/image/lrc-1977-b701_p-04107.jpg

Erosion of the surface reveals several shades of light toned layers, likely sedimentary deposits, as shown in this image taken by the HiRISE camera on the Mars Reconnaissance Orbiter. http://www.nasa.gov/sites/default/files/thumbnails/image/pia23059.jpg

Robert Curbeam currently holds the record for the most spacewalks during a single spaceflight. http://www.nasa.gov/sites/default/files/thumbnails/image/iss014e10084.jpg

NASA's record-setting Opportunity rover mission on Mars comes to end. http://www.nasa.gov/sites/default/files/thumbnails/image/sunset.jpeg

This preflight image from Feb. 6, 2019, shows NASA astronauts Mike Fincke and Nicole Mann and Boeing astronaut Chris Ferguson during spacewalk preparations and training inside the Space Station Airlock Mockup at NASA's Johnson Space Center in Houston. http://www.nasa.gov/sites/default/files/thumbnails/image/jsc2019e002964.jpg

NASA is preparing to explore electric-powered flight with the X-57 Maxwell, a unique all-electric aircraft which features 14 propellers along its wing. http://www.nasa.gov/sites/default/files/thumbnails/image/grc-2018-c-09843.jpg

Eat. Breathe. Do ccience. Sleep later. That's the motto of Derrick Pitts, NASA Solar System Ambassador. http://www.nasa.gov/sites/default/files/thumbnails/image/g1_-_dpitts_telescope.jpg

Cracks growing across Antarctica’s Brunt Ice Shelf are poised to release an iceberg with an area about twice size of New York City. It is not yet clear how the remaining ice shelf will respond following the break, posing an uncertain future for scientific infrastructure and a human presence on the shelf that was first established in 1955. http://www.nasa.gov/sites/default/files/thumbnails/image/brunt_oli_2019023_lrg_0.jpg

Good morning to our beautiful world, said astronaut Anne McClain from aboard the Space Station on Feb. 21, 2019. http://www.nasa.gov/sites/default/files/thumbnails/image/2.21-iss058e016863_highres.jpg

This picture showcases a gravitational lensing system called SDSS J0928+2031. http://www.nasa.gov/sites/default/files/thumbnails/image/potw1903a.jpg

NASA astronaut Alvin Drew participated in the STS-133 mission's first spacewalk. http://www.nasa.gov/sites/default/files/thumbnails/image/iss026e030929.jpg

Earnest C. Smith in the Astrionics Laboratory in 1964. http://www.nasa.gov/sites/default/files/thumbnails/image/ec_smith_1.jpg

The Curiosity Mars Rover took this image with its Mast Camera (Mastcam) on Feb. 10, 2019 (Sol 2316). http://www.nasa.gov/sites/default/files/thumbnails/image/pia23047_0.jpg

Two days remain until the planned liftoff of a SpaceX Crew Dragon spacecraft on the company’s Falcon 9 rocket—the first launch of a commercially built and operated American spacecraft and space system designed for humans. http://www.nasa.gov/sites/default/files/thumbnails/image/demo-1.jpeg

Mae Jemison was the first African Ameican woman in space. http://www.nasa.gov/sites/default/files/thumbnails/image/mae_jemison_29487037511.jpg

A SpaceX Falcon 9 rocket with the company's Crew Dragon spacecraft onboard launches from Launch Complex 39A, Saturday, March 2, 2019. http://www.nasa.gov/sites/default/files/thumbnails/image/33384173438_dfb4fa5e4a_o.jpg