Gather your millions, it's time to head to space.

On Thursday a private space travel company, Axiom Space, announced a flight to the International Space Station through Elon Musk's SpaceX rocket company.

The four astronauts will take a spaceflight in SpaceX's Crew Dragon capsule and spend at least eight days in microgravity and stay at the International Space Station. The Earth views are supposed to be spectacular.

Which they'd better be as the trip will cost $55 million per person.

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The trip is set to take off later into 2021.

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If this all sounds familiar, it's because it is. SpaceX announced last month a partnership with Space Adventures — a different space tourism company — to send four space travelers into orbit for five days also on the Crew Dragon capsule. That trip won't dock at the ISS and is expected to cost about $30 million, according to the New York Times.

SEE ALSO: SpaceX will send 4 (probably very rich) space tourists into orbit

Axiom's space trip would be the first fully private adventure, crewed and managed by the Houston-based company. Axiom plans to offer more of these ISS missions for "private astronauts" and said "discussions with NASA are underway" to establish twice-annual flights to the ISS. It wants to build its own space station.

One spot is already claimed for the inaugural flight. The other is a professional astronaut, leaving two spots open.

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