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Space

Rocket Lab Will Self-Fund a Mission To Search For Life In the Clouds of Venus (arstechnica.com) 32

FallOutBoyTonto shares a report from Ars Technica: Never let it be said that Rocket Lab founder Peter Beck lacks a flamboyant streak. [...] On Tuesday evening Rocket Lab announced that it will self-fund the development of a small spacecraft, and its launch, that will send a tiny probe flying through the clouds of Venus for about 5 minutes, at an altitude of 48 to 60 km. Beck has joined up with several noted planetary scientists, including Massachusetts Institute of Technology professor Sara Seager, to design this mission. Electron will deliver the spacecraft into a 165 km orbit above Earth, where the rocket's high-energy Photon upper stage will perform a number of burns to raise the spacecraft's orbit and reach escape velocity. Assuming a May 2023 launch -- there is a backup opportunity in January 2025 -- the spacecraft would reach Venus in October 2023. Once there, Photon would deploy a small, approximately 20 kg probe into the Venusian atmosphere.

The spacecraft will be tiny, as deep-space probes go, containing a 1 kg scientific payload consisting of an autofluorescing nephelometer, which is an instrument to detect suspended particles in the clouds. The goal is to search for organic chemicals in the clouds and explore their habitability. The probe will spend about 5 minutes and 30 seconds falling through the upper atmosphere, and then ideally continue transmitting data as it descends further toward the surface. "The mission is the first opportunity to probe the Venus cloud particles directly in nearly four decades," states a paper, published this week, describing the mission architecture. "Even with the mass and data rate constraints and the limited time in the Venus atmosphere, breakthrough science is possible."

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Rocket Lab Will Self-Fund a Mission To Search For Life In the Clouds of Venus

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  • by WierdUncle ( 6807634 ) on Thursday August 18, 2022 @06:28AM (#62799685)

    As far as I know, life depends on liquid water. From what I have read of the climate on Venus, the surface temperature is hot enough to melt lead. Maybe things are cooler higher up in the thick Venusian atmosphere, so liquid water could exist in clouds of droplets.

    One thing that is notable about life on earth, is that it can survive is very extreme conditions. One of my favourite nature stories about stuff living deep underground. There are bacteria that digest the rock, and produce gelatinous material, which experts call "snotites". One of the main byproducts of the snotite bacteria is sulphuric acid. This bacterial pee drips into a pool below. The acidic strength is equivalent to battery acid. There are blind transparent shrimps who just love swimming about in the acid. I missed the bit about what the shrimps live on. Fermented biologists, I expect, but I admit that is baseless speculation on my part.

    The point is that this fantastic ecosystem still requires liquid water. Perhaps a worthy topic of study would be if there are cloudy communities of living things on our own planet, who live out their lives in ephemeral droplets. It would be a good deal cheaper to investigate that, than to send a robot probe to Venus.

    • Re: (Score:3, Interesting)

      by MilliMicro ( 6251190 )

      There are blind transparent shrimps who just love swimming about in the acid. I missed the bit about what the shrimps live on. Fermented biologists, I expect, but I admit that is baseless speculation on my part.

      Most of these cave systems have a water source which brings dissolved minerals and gasses into the cave. Chemosynthetic microbes consume those to grow, and a whole food-web is built on top of them. So, something grazes on the bacteria, something eats the grazers, etc. The sulphuric acid production is usually due to microbes oxidising hydrogen sulphide gas for energy, seeing as it's a bit difficult to photosynthesise in a dark cave.

      Perhaps a worthy topic of study would be if there are cloudy communities of living things on our own planet, who live out their lives in ephemeral droplets.

      This isn't really my field, but I know there is some work on it already (n

    • Since you mentioned sulfuric acid, the atmosphere of Venus has minor concentrations of it (sulfur dioxide and water): https://nssdc.gsfc.nasa.gov/pl... [nasa.gov] These substances are not necessarily homogeneously distributed throughout the whole atmosphere. If water is above the CO2, it may have much higher local concentrations.
    • by 2Wrongs ( 627651 )
      There are bacteria that live in our clouds (although I believe it's a lifecycle where they come down at some point). The current theory is that Venus was habitable at some point a billion years ago (prior to runaway greenhouse gas cycle). So theoretically there could have been some extremophile bacteria. They've also (possibly) found phosphine which is difficult (but not impossible) to explain w/o life. I don't think anyone's offering odds of life on Venus, but I'm pretty excited they're sending this
  • If you're not careful on Venus, you might end up as a Miller construct wearing a porkpie hat on the Roci flitting around the galaxy / getting shot at / drinking coffee in the galley with Alex, Naomi and Amos and basically getting into trouble everywhere. Saw it on the news, or SyFy, kind of fuzzy.
  • Isn't that the outfit that launches from Mahia?

    (not that I have ever been there but I could see it from the top of Te Mata Peak

  • Earth air is a lifting gas on Venus. Why not inflate a bladder and float like a bobber to collect data indefinitely. Photovoltaics should work like a dream there too.

    Could drop a tether into the depths to get a heat differential and maybe power it heat engine style too. Or send your sensors down to various depths and see if there's a biology containing layer.

    Can you generalize the Google Project Loon outcome so it can be done on Venus as well?

    If you're going all that way, you can do a lot more science wi

  • The Venusian Space Force is monitoring this situation and stands ready to repel any Earthlings violating their sovereign territory.

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