It's not every day you see astronauts in space open Nasdaq trading in New York City's Times Square.

Three NASA astronauts rang in the opening of Nasdaq trading from the International Space Station Tuesday (June 2) to celebrate the historic flight of SpaceX's first crewed Dragon spacecraft over the weekend.

Joining him were astronauts Bob Behnken and Doug Hurley, who launched into space on a SpaceX Crew Dragon capsule Saturday (May 30). .

The SpaceX Crew Dragon flight, called Demo-2, marked the first U.S.

orbital launch of astronauts from American soil since NASA's space shuttle fleet retired in July 2011.

Behnken and Hurley spent 19 hours chasing the station on their Dragon ship, which they christened "Endeavour" after the NASA shuttle, before arriving at the space station on Sunday.

SpaceX has been flying uncrewed cargo ships to the station for NASA since 2012. .

It is one of two companies (Boeing is the other) with NASA contracts to fly astronauts to the space station.

"We're really at the dawn of a new space age," NASA deputy administrator Jim Morhard said during the Nasdaq ceremony.