The bill H. 4987 is a House Resolution commemorating the 40th anniversary of the Challenger space shuttle explosion, which occurred on January 28, 1986. The resolution reflects on the tragic event that resulted in the loss of seven astronauts, including South Carolina native Ronald McNair, and highlights the significant impact the disaster had on NASA and the space program. It recalls the mission's objectives, the public's reaction, and the subsequent changes implemented by NASA to enhance safety and reliability in space travel.

Additionally, the resolution reaffirms the annual designation of October 21 as "Ronald McNair Day" in South Carolina, honoring McNair's legacy as a pioneering astronaut and physicist. The resolution serves to remember both the Challenger tragedy and the contributions of McNair, who was the second African American to fly in space and a notable figure in the state's history.