Jeff Bezos will join his brother Mark, one paying auction winner and another unnamed person on the Blue Origin rocket bound for space in July.

On July 20, Amazon’s founder and billionaire magnate Jeff Bezos and his brother Mark will board the New Shepard suborbital rocket system. The Bezos brothers, one auction winner with $28 million to spare, and a fourth person will become the first crew aboard the reusable rocket for its 11-minute voyage to space.

Since Bezos made the announcement about his journey to space this month, tens of thousands of people have come together to petition against his return to the planet.

There are multiple petitions out there, but the front-runner, “Do not allow Jeff Bezos to return to Earth,” had collected more than 33,000 signatures by late Sunday. “Billionaires should not exist,” the description read. “On Earth, or in space, but should they decide the latter they should stay there.”

Bezos is the founder of the space exploration company Blue Origin, which built New Shepard. The rocket is reusable and has capacity for six passengers in its capsule.

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