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What do you guys think is a Kerbal's individual lifespan? Now, I don't think they only live 70 years on average like humans, considering they seemingly don't need food and can theoretically perform photosynthesis, are immune to space radiation, and can stay 70 years on a cramped space without mental or physical damage, so they seem to be a lot more "durable" than humans, but if you had to attach a value to a Kerbal's average lifespan, if they even are mortal at all and can't die only from explosions, how long would you say they live? A ""little"" bit more than humans, about 150 years? Thousands of years? Or have they discovered the secrets to anti-aging technology like humans hope to do in the future and are actually biologically immortal to diseases and aging, and can only die from serious life-threatening situations? Of course, all of this discussion is pointless, if I had to guess I'd say Kerbals don't age because of game design, game difficulty (making it easier instead of old Kerbals dying on a mission) and maybe limitations, and perhaps this could change and theoretically an individual Kerbal could have a biological age in KSP2, but it is still fun to discuss and guess the reason why this could happen in-game on KSP1, so what do you guys think? Share your opinion below if you feel like it!

Do you have a theory that you just want to let the world know about? Do you have ideas about the latest discoveries in astronomy, astrophysics, and cosmology? There aren't really many places to do this stuff on the forums, so here's a thread that includes it all. Users are free to post their theories (try to make them short), comment on others', and express their ideas/concerns about recent science news. Theories about the Kerbol system and planets from mods are also allowed, because what's a KSP Forum Thread without KSP? To give you guys some ideas of what theories are allowed, here's a list of topics: Atomic and subatomic physics. Evolution of solar systems. Early moments of the Universe. Exoplanets and exomoons. Dark matter and energy. Any theory about the stock KSP planets and moons. Realism of Kerbal Space Program. The four fundamental forces: Gravity, Electromagnetism, Strong Nuclear, and Weak Nuclear. Cosmic structures and clusters (open clusters, galaxies, nebulae, etc.). Our home galaxy! Dwarf planets and the Kuiper Belt. Planet 9/X/"Fatty" The evolution of the Universe. Alternate realities. Some other stuff. Go ahead an post your best theories! I probably will post some here, too, and edit the list of topics.

Ike is a relatively large moon of Duna. But what does such object does around Duna. Today we will figure it out! One of hypothesis is that Ike was formed with Duna because it’s orbit is stable and low. It is made of silicates and some kind of dark material. Perhaps there is not so much craters like on Minmus. So what kind of material is Ike made of? Honestly I don’t have any clue…. But lets imagine that it is some kind of flexible material that can make craters smooth. But how does this kind of material form? And where did it come from? But what if Ike was formed by a collision. A lot of material just flew away due to Duna’s low gravity. And some that stay formed a low-density object. But the orbit is so stable and almost equatorial. How? Maybe because of odd angle of the collision. (for a collision angle equator is an oddity) But what if Ike had really low density. And some of the material just escaped and then fall on Duna leaving nothing but what we have now…. The other and last hypothesis of mine is that Ike is a trail of volcanism that had strong appearance on Duna. But as how can we see, now Duna is geologically dead planet…. I hope you will appreciate my attempt to be interesting! I will be very happy if you will help me find a better hypothesis!