Jeff Bezos and Elon Musk both want to colonize space. Here are the 6 biggest problems with their plans, from thinning bones to toxic plants on Mars.

Business Insider
Business Insider
Published in
9 min readJul 23, 2021

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Three experts told Insider about the scientific, medical, and ethical challenges of Elon Musk and Jeff Bezos’ ambitions to colonize space.

Elon Musk and Jeff Bezos.
Elon Musk and Jeff Bezos both have grand plans to colonize space. Photo: Samantha Lee/Business Insider

By Isobel Asher Hamilton

We are currently in the middle of a new space race, except this time it’s not between conflicting nation-states — it’s battling tech billionaires.

Amazon founder and the richest human being alive, Jeff Bezos, boarded the New Shepard rocket made by his space exploration company Blue Origin on Tuesday, blasting 62 miles above sea-level to touch the edge of space. Elon Musk, the second-richest person in the world and CEO of space exploration company SpaceX, wished him luck on his voyage.

The two billionaires’ respective companies have been rivals for 15 years over their ambitions for space travel. Their companies are still battling for a huge NASA contract and the two billionaires have personally sparred over their competing projects — although Bezos’ comments have been more veiled than Musk’s.

In the near future, both Blue Origin and SpaceX hope to help NASA return astronauts to the moon.

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