Why Elon Musk doesn't like Jeff Bezos's space colonies

Elon Musk took issue with recent ideas for space exploration from Jeff Bezos.

Getty Images

Elon Musk & Jeff Bezos. 2019.

  • Elon Musk and Jeff Bezos have sparred over space exploration previously.
  • Musk wants to focus on Mars while Bezos has the moon and space colonies as goals.
  • In a recent tweet, Musk called out Bezos's plans for space colonies as unrealistic.

Great rivalries often make for great progress. Thomas Edison competed against Nikola Tesla, bringing electricity to the world. Steve Jobs's on-and-off feud with Bill Gates largely defined the computer age, resulting in rapid innovation. Will the battle of the tech barons Elon Musk and Jeff Bezos come to fuel the space age?

While they have already sparred publicly on previous occasions, the latest salvo between Musk and Bezos stems from different visions for space exploration and settlement. While Bezos is focused on the moon and recently-announced space colonies, Musk has made Mars the main destination for Space X.

Earlier in May 2019, Bezos presented a new lunar lander called Blue Moon. Designed by his rocket company Blue Origin, the lander will be able to delivery a variety of payloads to the moon, aiding in its colonization.

The announcement of the lander also included Bezos's overall vision for the future of humans in space. He sees a trillion people living at different parts of the universe. Where would they live? To a large extent in O'Neill Colonies, thinks Bezos.

Photo by Mark Wilson/Getty Images

Jeff Bezos, owner of Blue Origin, introduces a new lunar landing module called Blue Moon during an event at the Washington Convention Center, May 9, 2019 in Washington, (Photo by Mark Wilson/Getty Images)

An O'Neill colony or O'Neill cylinder, is a concept espoused by the American physicist Gerard K. O'Neill in his 1976 book The High Frontier: Human Colonies in Space. Such a cylinder would actually have two five-mile-long counter-rotating cylinders, rotating in opposite directions and cancelling out any gyroscopic effects. This would also result in artificial gravity via the effect of the centrifugal force on the insides of the cylinders.

In the speech that mentioned the colonies, Bezos also indirectly challenged Musk's vision, saying that going to Mars is too distant and problematic to aid in human progress.

Blue Origin.

Space colony.

In a tweet from May 23rd, Elon Musk struck back, attacking Bezos's ideas as unrealistic. "Makes no sense," wrote Musk. "In order to grow the colony, you'd have to transport vast amounts of mass from planets/moons/asteroids. Would be like trying to build the USA in the middle of the Atlantic Ocean."

Which billionaire gets to try out their ideas for building a space colony first remains to be seen. Here's how Musk would settle Mars:

Watch Elon Musk Reveal SpaceX's Most Detailed Plans To Colonize Mars

Scroll down to load more…