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Scientists have found a way to 'tattoo' tardigrades

(phys.org)
56 points PaulHoule | 4 comments | 06 May 25 01:51 UTC | HN request time: 3.08s | source
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jancsika ◴[07 May 25 15:38 UTC] No.43917117[source]▶
Here's a fun thought-experiment: imagine that NASA began with the truism that tardigrades are the best fit candidates for astronauts[1]. They put all their effort and money into robotics and tech to support little tardigrade colonies on The Moon and Mars.

Present day, this alternate universe has the same boring space tourism for humans that we have. But they also have a vibrant inter-planetary research program with robot-assisted colonies of tattooed tardigrades, doing all kinds of experiments, most of which are broadcast back home.

And honestly, by the time we get tech to figure out how to terraform Mars, we'd probably also have the tech to make humans more tardigrade-like. So the tardigrade astronaut program (TAP for short) would provide an important body of knowledge for the necessary biological changes.

Just seems like a better use of astronaut dollars all around[2].

1: I mean, they come standard with little space suits! C'mon!

Edit:

2: And think of the savings: I just found the first batch of candidates for the TAP's Mercury project by picking up a wet leaf.

replies(1): >>43917183 #
1. staplers ◴[07 May 25 15:43 UTC] No.43917183[source]▶

  by the time we have the tech to figure out how to terraform Mars
A billion year oxidization event that forms an atmosphere, creates water from nothing, and ignites the core of the planet triggering tectonic activity?

The myth of humans "terraforming Mars" is so far from reality it makes me question the aptitude of anyone suggesting it.

replies(1): >>43917304 #
2. betterThanTexas ◴[07 May 25 15:52 UTC] No.43917304[source]▶
Presumably it's at least worth considering if such a pessimistic attitude is warranted. Such a slow oxidation rate is certainly not warranted on a chemical process level. The trick is performing this chemical process 1.5 AU away.
replies(1): >>43917340 #
3. staplers ◴[07 May 25 15:55 UTC] No.43917340[source]▶
Absolutely, don't mistake my cynicism for defeatism. I want it as badly as anyone else, but the chemical and thermodynamic makeup of Mars does not warrant optimism (given present knowledge).
replies(1): >>43918230 #
4. PaulHoule ◴[07 May 25 17:10 UTC] No.43918230{3}[source]▶
Bezos's vision is better than Musk's. This plan to gravitationally disrupt Ceres and turn 100% of it into habitat strictly dominates all other space colonization ideas in our solar system not least that it can provide more square feet of habitat than Earth does but probably not the 0.2 km^3 of ocean per person or the 0.7 million tons of atmosphere per person that we have, areas where Biosphere 2 fell tragically short. [1]

https://arxiv.org/pdf/2011.07487

[1] CO2 levels swung violently from day to night in Biosphere 2 because they didn't have enough atmosphere relative to plants and animals; Biosphere 2 probably shouldn't have tried to simulate oceans at all