Billionaire Sir Richard Branson realised a childhood dream by soaring to the edge of space on Sunday aboard his Virgin Galactic rocket plane.
The entrepreneur, 70, hailed the "experience of a lifetime" on his company's first fully crewed flight.
Sir Richard smiled as he headed back to the planet surface after feeling the thrill of weightlessness for several minutes.
The launch was hailed a "landmark moment" for the Brit, as well as the whole commercial space industry.
Take-off had been delayed by about 90 minutes due to the weather overnight at Spaceport America in New Mexico, in the US.
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But video streamed live online showed the plane in the air at about 3.45pm UK time, and the aircraft had reached 40,000 feet by 4pm.
The spacecraft was carried up into the atmosphere by its mothership before being released so it could power up to highs of 250,000 feet.
Sir Richard and his crew reached speeds of Mach 3 on their way to the edge of space.
After a short spell during which they experienced weightlessness, the craft then pointed downwards and made its way back to the ground, touching down around 4.40pm.
On the return flight, Sir Richard hailed the "experience of a lifetime" and the "hard, hard work" that went into the flight.
Out on the runway, he was greeted with cheers and hugs as he walked back to the spaceport.
Later, he told a press conference: "Like most kids I have dreamt of this moment since I was a kid but honestly nothing could prepare you for the view of Earth from space.
"The whole thing was just magical."
He also paid tribute to scientist Stephen Hawking, who he said it was an "honour" to know.
Sir Richard is the first owner-astronaut to take part in a mission, beating Amazon founder Jeff Bezos, who plans to reach space in his own rocket through his Blue Origin company.
Congratulations on the flight," Bezos said on Instagram. "Can't wait to join the club!"
On the ground, Michael Colglazier, chief executive of Virgin Galactic, said: "This is a landmark moment for Virgin Galactic.
"It's a landmark moment for the new commercial space industry and it certainly is a landmark moment for our founder Richard Branson."
He said the company's work on Sunday was dedicated to "opening up space to all".
Tourists are expected to pay 250,000 US dollars (£180,000) for a spaceflight on Virgin Galactic, which includes four minutes of zero gravity.
Virgin has said it plans at least two further test flights of the spaceplane in the months ahead before beginning regular commercial operation in 2022.
Several hundred wealthy would-be citizen astronauts have already booked reservations.
