ALT Astronaut Edwin E. Aldrin Jr., lunar module pilot of the first lunar landing mission, poses for a photograph beside the deployed United States flag during an Apollo 11 extravehicular activity on the lunar surface. The Lunar Module is on the left, and the footprints of the astronauts are clearly visible in the soil of the moon. Credit: NASA/Neil Armstrong

ALT View of the International Space Station (ISS) in the distance as SpaceX Crew-5 Dragon returns to Earth. Photo credit: NASA/Crew-5 Member

ALT https://en.wikipedia.org/wiki/World_Book_Day

ALT The Heart and Soul nebulae are seen in this infrared mosaic from NASA's Wide-field Infrared Survey Explorer (WISE). The nebula to the right is the Heart, designated IC 1805 and named after its shape resembling a human heart. To the left is the Soul nebula. Both nebulae appear as green bubbles of gas lined by wispy, white clouds. Inside each are splotches of fiery red gas. Vibrant blue stars litter the entirety of the scene. Credit: NASA/JPL-Caltech/UCLA

ALT President Obama gives remarks at the 2023 Democracy Forum in Chicago, Illinois.

ALT This black-and-white image depicts a 1969 event at Buckingham Palace where (left to right) Michael Collins, Neil Armstrong, Queen Elizabeth II, and Buzz Aldrin met as part of the Apollo 11 Goodwill Tour. The NASA astronauts wear dark suits and slim ties. The queen appears in a light-colored sleeveless dress, pearls, and a brooch.

ALT Members of NASA’s Perseverance Mars rover team watch in mission control as the first images arrive moments after the spacecraft successfully touched down on Mars, Thursday, Feb. 18, 2021, at NASA's Jet Propulsion Laboratory in Pasadena, California. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. Photo Credit: (NASA/Bill Ingalls)