Making oxygen

There is plenty of oxygen on Mars, just not in the nice O2 form that we need to breathe. Getting that requires some effort but will be worth it: oxygen is not the sort of thing we want to have to haul with us from Earth, particularly not for long-term colonization. The buzzphrase applied to technology that uses existing resources is In Situ Resource Utilization (ISRU), and this is what we are going to do, in one form or another. Continue reading “Making oxygen”

Mars Viewing

“In the summer of 2018, Mars will be closer to Earth than at any time since 2003. The Red Planet won’t be this close again until 2035…

At opposition, on a night with clear, steady air, even with a small telescope you should be able to see Mars’ polar cap of frozen carbon dioxide and water ice, along with darker and lighter regions on the planet.”

Skin-tight Suits

The human body needs protection in low-pressure environments (e.g the vacuum of space or Mars’ low atmospheric pressure). Without protection, gasses in the body expand and liquids sublimate away, basically making the normal function of bodily systems impossible.

Gas partial pressures and operating pressures of suits and habitats are huge topics that I am not getting into here right now. What I want to mention is something that is a little surprising: skin itself is gas-tight and does not need as much protection as one would guess. All that is required is mechanical compression in order for it to maintain its normal shape and function.

A Mars Life

“We will have to live in domed cities and wearing spacesuits on Mars for a long time. But that’s not to say that we can’t have a really nice life. But it’s not gonna be an Earth life. It’s gonna be a Mars life.”

-John Grunsfeld, Associate Administator, former Astronaut, NASA

(From Nat Geo digital short “Finding Shelter on Mars”,–PNfETnzRnlxuRaqE-NlgZ_SbDUwaV2DA9Q8pdgmwf/)