ALT The inclusion of astronaut William "Bill" Thornton's autograph on this STS-8 flown envelope (cover) made the difference of it selling for a few hundred to thousands of dollars. (RR Auction)

ALT A large model of NASA's Space Launch System (SLS) rocket that took 158 hours to build out of 13,184 pieces is among the displays in "Artemis Adventure with LEGO Bricks," now at The Henry Ford museum in Dearborn, Michigan. (Flying Fish)

ALT A cross-section of a former giant sequoia tree that was grown from a seed carried on NASA's Artemis I mission around the moon is among Mini Museum's Artemis Moon Tree offerings. (Mini Museum)

ALT A 2026 "Enduring Liberty" half-dollar coin floats in front of a window aboard the International Space Station. The coin was one of eight sent into orbit for the nation's semiquincentennial. (NASA/US Mint)

ALT Vast's Haven Demo Artifact display includes a segment cut from the structural panels left over from the manufacturing of the commercial space station testbed. (Vast)

ALT Milt Windler, "Maroon Flight," seated at the flight director's console in NASA's Mission Control Center in Houston, Texas. (NASA)

ALT An artificial intelligence (AI)-generated image of a crocheted golden dragon based on astronaut Jessica Watkins' description of "Lucky," the Crew-13 zero-gravity indicator. A photo or video of the doll has yet to be seen from the mission, now underway. (collectSPACE)

ALT Two consignments, two lots, one artifact: The jacket and trousers for Neil Armstrong's training (or spare) inflight coverall garment are up for auction, benefiting the American Space Museum. (ASM)

ALT Stills from "Inside Outer Space," a 1963 episode of "Walt Disney's Wonderful World of Color" featuring Professor Ludwig von Drake as the "famous authority on outer space." (The Walt Disney Company)

ALT A special Astronaut Pikachu plush is seen aboard the International Space Station as part of a new collaboration between ESA and The Pokémon Company International. (ESA/NASA/Sophie Adenot)

ALT A 1976 art print captured the newly-named connection between Star Trek and NASA's space shuttle program. (NASA/Paramount)

ALT Two NASA T-38 astronaut training jets perform the first-ever flyover of a professional football field at the start of the Pittsburgh Steelers versus Atlanta Falcons game on Sunday, Sept. 13, 2026. The demo was part of NASA's new NFL Inspiration Tour. (NASA/FOX/NFL)

ALT Artemis II commander Reid Wiseman (left) and pilot Victor Glover, seen here in March 2026, have become NASA's first astronauts to join its emeritus program, than retire outright. (NASA/Kim Shiflett)

ALT A prop Delta badge worn on "Star Trek: Strange New Worlds" floats in microgravity on board the International Space Station to mark the 60th anniversary of the science fiction franchise. (ESA)

ALT McDonald's new Texas Meal, exclusive to restaurants in the Lone Star State, comes with a collectible cup including one celebrating Houston as Space City with an astronaut and shuttle. (McDonald's)

ALT Artemis II astronaut Christina Koch gave the clues for a category devoted to her career on the semifinals episode of the game show Jeopardy! Masters on Sep. 4, 2026. (Sony Pictures Television)

ALT Toyohiro Akiyama, Soyuz TM-11 crewmate, in the Mir space station while reporting for the Tokyo Broadcasting System. (Roscosmos)

ALT NASA Administrator Jared Isaacman holds up a commemorative metal plaque signed by President Donald Trump that will be added to the cornerstone of the agency's planned Moon Base. (NASA)

ALT A camera on the SpaceX Falcon Heavy upper stage captures NASA's Nancy Grace Roman Space Telescope as it begins its three-month journey to Sun-Earth Lagrange Point 2. (SpaceX)