A mystery bidder paid $28 million at auction on Saturday for a seat alongside Jeff Bezos on board the first crewed space flight by the billionaire's Blue Origin company next month.
The Amazon founder revealed last week that he and his brother Mark would take seats on board the company's New Shepard launch vehicle on July 20, to fly to the edge of space and back.
The Bezos brothers will be joined by the winner of Saturday's charity auction, whose identity remains unknown, and by a fourth, as yet unidentified space tourist.
"The name of the auction winner will be released in the weeks following the auction's conclusion," Blue Origin tweeted after the sale.
"Then, the fourth and final crew member will be announced – stay tuned."
Saturday's successful bidder beat 20 rivals in a May 19 auction that wrapped up with a 10-minute bidding frenzy.
Bidding reached $4.8m by Thursday, but shot up spectacularly in the final live auction, rising by million-dollar increments.
The proceeds, aside from a 6 per cent auctioneer's commission, will go to Blue Origin's foundation, Club for the Future, which aims to inspire future generations to pursue careers in Stem subjects – science, technology, engineering and mathematics.
Taking off from a desert in western Texas, the New Shepard trip will last 10 minutes, four of which passengers will spend above the Karman line that marks the recognised boundary between Earth's atmosphere and space.
After lift-off, the capsule separates from its booster, then spends four minutes at an altitude of more than 100 kilometres, during which time those on board experience weightlessness and can observe the curvature of Earth.
The booster lands autonomously on a pad 3km from the launch site, and the capsule floats down to the surface with three large parachutes that slow it down to a speed of about 1.5kph when it lands.
Mr Bezos, who announced this year that he is stepping down as Amazon's chief executive to spend more time on other projects, including Blue Origin, said it was a lifelong dream to fly into space.
The New Shepard has carried out more than a dozen successful uncrewed test runs from its facility in the Guadalupe Mountains of Texas.
"We're ready to fly some astronauts," Blue Origin's director of astronaut and orbital sales, Ariane Cornell, said on Saturday.
The reusable suborbital rocket system was named after Alan Shepard, the first American in space 60 years ago.
The automated capsules have six seats with horizontal backrests placed next to large portholes, in a futuristic cabin with fancy lighting. Cameras record the few minutes the space tourists experience weightlessness.
Blue Origin's maiden crewed flight comes amid fierce competition in the field of private space exploration, with Elon Musk's SpaceX, and Virgin Galactic, founded by British billionaire Richard Branson, all jostling for pole position.
Mr Bezos has a very public rivalry with Mr Musk, whose SpaceX is planning orbital flights that would cost millions of dollars and send people much further into space.
SpaceX has already begun to carry astronauts to the International Space Station and is a competitor for government space contracts.
Virgin Galactic, meanwhile, hopes to begin regular commercial suborbital flights early next year, with eventual plans for 400 trips a year.
About 600 people have booked seats, costing from $200,000 to $250,000, and there has been talk of Mr Branson himself taking part in a test flight this summer, although no date has been set.
Profile Periscope Media
Founder: Smeetha Ghosh, one co-founder (anonymous)
Launch year: 2020
Employees: four – plans to add another 10 by July 2021
Financing stage: $250,000 bootstrap funding, approaching VC firms this year
Investors: Co-founders
UAE v Gibraltar
What: International friendly
When: 7pm kick off
Where: Rugby Park, Dubai Sports City
Admission: Free
Online: The match will be broadcast live on Dubai Exiles’ Facebook page
UAE squad: Lucas Waddington (Dubai Exiles), Gio Fourie (Exiles), Craig Nutt (Abu Dhabi Harlequins), Phil Brady (Harlequins), Daniel Perry (Dubai Hurricanes), Esekaia Dranibota (Harlequins), Matt Mills (Exiles), Jaen Botes (Exiles), Kristian Stinson (Exiles), Murray Reason (Abu Dhabi Saracens), Dave Knight (Hurricanes), Ross Samson (Jebel Ali Dragons), DuRandt Gerber (Exiles), Saki Naisau (Dragons), Andrew Powell (Hurricanes), Emosi Vacanau (Harlequins), Niko Volavola (Dragons), Matt Richards (Dragons), Luke Stevenson (Harlequins), Josh Ives (Dubai Sports City Eagles), Sean Stevens (Saracens), Thinus Steyn (Exiles)
Learn more about Qasr Al Hosn
In 2013, The National's History Project went beyond the walls to see what life was like living in Abu Dhabi's fabled fort:
How to watch Ireland v Pakistan in UAE
When: The one-off Test starts on Friday, May 11
What time: Each day’s play is scheduled to start at 2pm UAE time.
TV: The match will be broadcast on OSN Sports Cricket HD. Subscribers to the channel can also stream the action live on OSN Play.
Company profile
Name: Back to Games and Boardgame Space
Started: Back to Games (2015); Boardgame Space (Mark Azzam became co-founder in 2017)
Founder: Back to Games (Mr Azzam); Boardgame Space (Mr Azzam and Feras Al Bastaki)
Based: Dubai and Abu Dhabi
Industry: Back to Games (retail); Boardgame Space (wholesale and distribution)
Funding: Back to Games: self-funded by Mr Azzam with Dh1.3 million; Mr Azzam invested Dh250,000 in Boardgame Space
Growth: Back to Games: from 300 products in 2015 to 7,000 in 2019; Boardgame Space: from 34 games in 2017 to 3,500 in 2019
Liverpool's all-time goalscorers
Ian Rush 346
Roger Hunt 285
Mohamed Salah 250
Gordon Hodgson 241
Billy Liddell 228
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THE BIO
Family: I have three siblings, one older brother (age 25) and two younger sisters, 20 and 13
Favourite book: Asking for my favourite book has to be one of the hardest questions. However a current favourite would be Sidewalk by Mitchell Duneier
Favourite place to travel to: Any walkable city. I also love nature and wildlife
What do you love eating or cooking: I’m constantly in the kitchen. Ever since I changed the way I eat I enjoy choosing and creating what goes into my body. However, nothing can top home cooked food from my parents.
Favorite place to go in the UAE: A quiet beach.
South Africa's T20 squad
Duminy (c), Behardien, Dala, De Villiers, Hendricks, Jonker, Klaasen (wkt), Miller, Morris, Paterson, Phangiso, Phehlukwayo, Shamsi, Smuts.
The bio
Favourite book: The Alchemist by Paulo Coelho
Favourite travel destination: Maldives and south of France
Favourite pastime: Family and friends, meditation, discovering new cuisines
Favourite Movie: Joker (2019). I didn’t like it while I was watching it but then afterwards I loved it. I loved the psychology behind it.
Favourite Author: My father for sure
Favourite Artist: Damien Hurst
Russia's Muslim Heartlands
Dominic Rubin, Oxford
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UAE currency: the story behind the money in your pockets
Name: Brendalle Belaza
From: Crossing Rubber, Philippines
Arrived in the UAE: 2007
Favourite place in Abu Dhabi: NYUAD campus
Favourite photography style: Street photography
Favourite book: Harry Potter