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. via NASA https://go.nasa.gov/2DZuRba

Astronaut Buzz Aldrin salutes after being introduced at the 2019 State of the Union address. via NASA https://go.nasa.gov/2UNHLyL

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. via NASA https://go.nasa.gov/2MSbmnE

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. via NASA https://go.nasa.gov/2UG6ZPo

On Jan. 22, 2003, the crew of Space Shuttle Columbia captured this sunrise from the crew cabin during Flight Day 7. via NASA https://go.nasa.gov/2Ggd9BM

Despite the vastness of space, objects tend to get in front of each other. via NASA https://go.nasa.gov/2D1HosS

Portions of Cuba, the Bahamas and the Turks and Caicos Islands are viewed from the International Space Station. via NASA https://go.nasa.gov/2GbJQ3d

Falcon 9, Crew Dragon Roll to Launch Pad via NASA https://go.nasa.gov/2FSI0VC

NASA lost seven of its own on the morning of Jan. 28, 1986, when a booster engine failed, causing the Shuttle Challenger to break apart just 73 seconds after launch. In this photo from Jan. 9, 1986, the Challenger crew takes a break during countdown training at NASA’s Kennedy Space Center. via NASA https://go.nasa.gov/VhBOGF

Fifty years ago on Dec. 21, 1968, Apollo 8 launched from Pad A, Launch Complex 39, Kennedy Space Center at 7:51 a.m. ES). via NASA https://go.nasa.gov/2ECT2Nt