NASA Administrator Jared Isaacman, signs the NYSE guest book, as President of NYSE Group Lynn Martin looks on, prior to the opening bell of the New York Stock Exchange, Thursday, April 30, 2026, in New York, NY. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jared Isaacman, signs the NYSE guest book, as President of NYSE Group Lynn Martin looks on, prior to the opening bell of the New York Stock Exchange, Thursday, April 30, 2026, in New York, NY. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jared Isaacman, and President of NYSE Group Lynn Martin walk through the lobby of the NYSE building prior to Isaacman, and other NASA leadership, ringing the opening bell of the New York Stock Exchange, Thursday, April 30, 2026, in New York, NY. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jared Isaacman, 4th from left, joined by President of NYSE Group Lynn Martin, 2nd from right, along with NASA leadership, rings the opening bell of the New York Stock Exchange, Thursday, April 30, 2026, in New York, NY. Photo Credit: (NASA/Bill Ingalls)

President of NYSE Group Lynn Martin gives remarks to invited guests ahead of NASA Administrator Jared Isaacman, and other NASA leadership, ringing the opening bell of the New York Stock Exchange, Thursday, April 30, 2026, in New York, NY. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jared Isaacman, 4th from left, joined by President of NYSE Group Lynn Martin, 2nd from right, along with NASA leadership, rings the opening bell of the New York Stock Exchange, Thursday, April 30, 2026, in New York, NY. Photo Credit: (NASA/Bill Ingalls)

Signage outside the New York Stock Exchange building show Artemis II mission imagery ahead of NASA Administrator Jared Isaacman ringing the opening bell, Thursday, April 30, 2026, in New York, NY. Photo Credit: (NASA/Bill Ingalls)

Signage outside the New York Stock Exchange building show Artemis II mission imagery ahead of NASA Administrator Jared Isaacman ringing the opening bell, Thursday, April 30, 2026, in New York, NY. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jared Isaacman, gives remarks before he and other NASA leadership ring the opening bell of the New York Stock Exchange, Thursday, April 30, 2026, in New York, NY. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jared Isaacman, gives remarks before he and other NASA leadership ring the opening bell of the New York Stock Exchange, Thursday, April 30, 2026, in New York, NY. Photo Credit: (NASA/Bill Ingalls)