Space

8671 readers

131 users here now

Share & discuss informative content on: Astrophysics, Cosmology, Space Exploration, Planetary Science and Astrobiology.

Rules

Be respectful and inclusive.
No harassment, hate speech, or trolling.
Engage in constructive discussions.
Share relevant content.
Follow guidelines and moderators' instructions.
Use appropriate language and tone.
Report violations.
Foster a continuous learning environment.

Picture of the Day

The Busy Center of the Lagoon Nebula

Related Communities

🔭 Science

🚀 Engineering

🌌 Art and Photography

Other Cool Links

founded 1 year ago

MODERATORS

[email protected]

Would astronauts’ kidneys survive a roundtrip to Mars? (www.ucl.ac.uk)

submitted 4 months ago by [email protected] to c/[email protected]

6 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] threelonmusketeers 1 points 4 months ago

The volume of shielding water needed is the difference between those two cylinders, or 22⋅π⋅2.752−20⋅π⋅1.752≈522.68−192.42=330.26m3. As one cubic meter of water weighs 1 metric ton (1,000kg), that's 330,260kg to get into space

Honestly, 330 tonnes doesn't seem too unacheivable to me. That's less than the mass of the ISS, which was built using much smaller rockets than are currently in development.