He arrived in Texas, tried on his flight suit for the first time, and is now preparing to live out his childhood dream.

On Sunday, French entrepreneur Sylvain Chiron will board a Blue Origin rocket and blast off into space, joining the select group of humans who have ventured beyond Earth's bounds.

"I never thought I'd get to do this," the 52-year-old, who hails from the mountainous southeastern region of Savoy, told AFP in an interview two days before his adventure.

"We're going to be astronauts for 15 minutes, so a bit like pretend astronauts, but astronauts nonetheless!"

Blue Origin's spaceflights are brief hops just beyond the edge of space and back again—but still allow passengers to admire the curve of the Earth while free floating during a few minutes of weightlessness.

Europe's newest rocket soon launches, taking with it many space missions each with a unique objective, destination and team at home, cheering them on. Whether into Earth orbit to look back and study Earth, peer out to deep space or test important new technologies, Ariane 6's first flight will showcase the versatility and flexibility of this impressive, heavy-lift launcher.

The Replicator mission, from Warsaw, Poland, and Berlin, Germany, based startup Orbital Matter, will launch on Ariane 6 to demonstrate a new 3D printing technology in orbit, potentially opening the door to new space structures that wouldn't have been possible otherwise, made using fewer resources.

The name "Replicator" is a homage to the many forms of advanced manufacturing methods in science fiction, capable of making complex products, ready to use: Star Trek's kitchen microwave-like Replicators could synthesize meals on demand; the Von Neumann Probe is a conceptualized spacecraft capable of exponentially self-replicating; and in the Stargate series, Replicators are a highly advanced machine race capable of reproducing themselves indefinitely.