kerbiloid

As the calorific content of H2 oxidation is much greater than CH4's one, this process would spend much more (external) energy to split the water than the produced methane can give. So, you need a great external energy source. Solar/wind/hydro require large amounts of construction metals and polymers, which, in turn, require great amount of carbon and hydrocarbon-derived chemicals. Digging deeper in the technological cycles you will soon realize that this snowball grows faster than gives a solution. Atompunk way: You need a powerful (thermo)nuke reactor with a carriage of ready-to-use fuel (i.e. deus ex machina) producing enormous amounts of cheap energy - at least for the first time while you are building your full-sized industrial facilities and energy plants. And you must build a nukefuel-producing industry to feed your reactor when the original fuel is over. When this is done, you realize that you don't need as much hydrocarbon fuel as you presumed, because you can just expand your nuke and make as much pure hydrogen for rockets as you wish (or are already using hydrazine). Also you realize that 90% of anything you can desire to build is already built. Dieselpunk way: You need enormous amounts of coal. It gives both energy and carbon (coke). But in this case you don't need to capture CO2, so the original aim is to be considered as false. You build a Dark Castle over the iron and coal mines and start building giant iron-coal smelters and coal energy plants with huge smoke pipes (Vertical Propulsion Emporium mod gives an example) making your personal mini-Mordor with rusty iron rockets flying to the sky (Rusty Rockets mod) and brutal flying aeroplanes (RetroFuture mod, but not sure if it still works in 1.1) carrying rusty iron bombs. (Monocle in eye is optional). Of course this means that you need a planet with rich biosphere history, so you would presume that Kerbin had prehistorical swamps and forests. So, an atmosphere-only carbon idea looks promising until you realise that it requires an external support (machinery and chemistry traffic from Earth) or additional conditions (coal or thermonuke reactor).

Water almost everywhere except several hot and dry bodies (Venus, Mercury, Io). Sulfur - Io.

Because 1. When then space race was beginning (1950s) people yet believed in Venerian swamps and Martian channels, maybe even with dinosaurs and maidens (or at least with some mildew and moss). Fifteen years later they were already considered as dead dull pieces of stone, interesting only for nerds. 2. In 1960s manned orbital stations (MOL, Almaz, wet/dry workshops) were planned as spy satellites, because the electronics was so unstable, that any useful satellite required a shift engineer onboard. While photos would be packed into capsules and catched in air by aircrafts. In 1970s computers and radio links eliminated this need, killing mostly all manned orbital projects.

Otherwise you call it "the main planet", while the original one - it's trojan companion... P.S. Probably, not the mass itself plays role, but the ratio of their masses, The closer are their masses - the greater would be their oscillations around their orbit, the more unstable this system. While when one of co-planets has much greater mass (Jupiter vs Trojans, Earth vs clouds of trash), it forces the lesser companion to keep the discipline, L4 and L5 are equal, the only difference is aesthetic.

According to the previous, from my pov all (and technically infinite) Boltzmann brains which are possible, just are by definition already exist in the "all-inclusive" Universe and have no substantial difference from any other form of consciousness. As the process of resolution of indeterminated states needs an observer, any consciousness, including the Boltzmann brains, is just as a "view direction" on a static Universe landscape, So, the only difference between Boltzmann brain and human's personal consciousness are their scale and everyday commonness.

No "early Universe". "Early visible/perceptible Universe". "Early" is just "situated on the coordinate axis (so-called "time") with lesser coordinate value". Universe contains this axis (so-called "time") too, it can't be "early" or "late". There is no "left ocean" and "right ocean", only "ocean" and an arbitrary direction you are looking in. "Big Bang" is an "initial state of visible entities where known physical laws are applicable", not a "born of Universe", just because to "appear" it needs an external coordinate axis with "before-after". Any axis is by definition contained in the Universe. Not a Universe appeared, but a point of view initialized, nothing could "appear" without external measuring ruler, "Known physical laws are applicable do describe" "quantum states realized ... traveling away faster than the speed of light". "Travelling", "speed" are defined only if you take not a whole Universe, but its cutoff from a desired direction. Because you should extract one axis at will - to call it "time". "Viewing the right-hand side of 4-dimensional diagram describing the progressive sequence of VisibleUniverse states".

The perfect one is not required. There was/is a superposition of possible quantum states describing the Universe pattern. Once an observer randomly appeared, the states are/were determined and "realized". Now we are watching a 13 bln years long expanding rings on the water. (Maybe jokingly, maybe who knows). Btw: the "light speed limit" is just a postulate defining the scope of applicability of relativistic theory. Nothing makes it a kind of divine entity, especially if assume that any "speed" - light or no - is just a "dy/dx" locally measured for some two coordinates. If presume that "time" is just a dimension, any speed is just a static slope inclination in multi-dimensional space, nothing more. Also, nothing can "appear" in this case, anything can only permanently exist, while an "observer" just defines an azimuth at which "we" "are" "looking" at this multidimensional landscape.

I (jokingly) mean that quantum mechanics introduces an "observer" which determinates the indeterminated.

Boltzmann had one. 13 bln years ago one had suddenly appeared. Though, we have at once "anthropic principle", "visible Universe", "Fermi paradox".

Why? That Phaistos pictos are just a walkthrough instruction for the ancient "Prince of Persia" game. (And btw the ancient Persia wanted the game author dead or alive, paying a talent of gold.)

Have you ever met any of those famous ancient Ύντηλος PC or iZeus? The Time is ruthless... Only abacus and antikytherian still survived. While the archaeologists are still unsuccessfully trying to decode the pictograms on Phaistos Disc. Which is just a cartridge for the ancient ΞΒοξ-360 game console,

Yes, forgot about them.

They also need an enriched U or Pu produced in a reactor with enriched uranium. They just add a large amount of non-enriched isotopes as a bulk material. RTG is just a side product of reactors. A part of its waste enough short-living to be always hot, enough long-living to keep its power for several decades. All natural RTG fuels decay within several centuries after the supernova explosion where they were born.

Just take some uranium stones and make a pile...

Why, do you think, he is red?

Why ion? Geostationaries are injected into their orbits with miserable chemicals. Just raise its apoapsis up to, say, 100000 km, and it will spend most of time far from air drag, debries and madding crowd. Better use this on a retrograde orbit - this would dramatically decrease a collision rate.

https://www.pinterest.com/pin/86483255318302435/ https://www.pinterest.com/pin/96757091965605129/ Btw: those red balls on the picture are a countermeasure against unpredicted disasters...

Not a native speaker (obviously), but venom is a biological excrete mostly of protein nature. It may or may not react with the human biochemical processes, may or may not be neutralized by the immune system. While poison is a more common word including simple inorganic compounds such as cyanides which stupidly disturb or corrode these processes or just kill the cells. The immune system is useless against inorganics, it's against proteins. Missed this part, thanks.

Isn't LH2/LO2 mix such dangerous too?

2016 - 1990 != 14 Is this message old, or stupid? Twelve other years he was inside the station.

Interstellar + Martian - Matt Damon = Approaching the Unknown. (This is strange, as he was the connection point of those two movies. ) After they had abandoned Watney on Mars, who needs that crew? Your shuttle - your rules!

1. Launch a tug. 2. Catch the Hubble. 3. Raise the orbit. 4. Wait 100 years until somebody will fly there on a space yacht and take it back to the Earth..

I mean more modern computers and wireless communications which made MOL / original Almaz crewed stations ineffective in comparison with unmanned satellites, and giant orbital stations with 50-100 crew members as well . So, after them all space programs have been scaled down from multi-manned ships to unmanned satellites.

Can't this be an ice giant teared to pieces, say, due to a planets collision? Probably this would spawn a lot of comets.