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A Bubbleworld would meet your specifications, especially if you encased Jupiter. Bubbleworld A bubbleworld is an artificial construct that consists of a shell of living space around a sp...
First, kudos to you for realizing that planetary mass is not the only thing influencing how a planet (or even if!) a planet holds on to its atmosphere. Distance is also an important factor. Thanks ...
So this giant flying spider has really, really long legs, three to four times its body length. Its legs are also very hairy, with fine, feathery hairs. Like a jumping spider it is able to leap v...
Each planet would have a standard time, with periods that make sense. Mars day is 20 some minutes longer than Earth. So you could just add a couple minutes here or there, or do a time slip, where t...
If the planet was a bit closer to the star, like Venus, had a lot of surface water, and slightly higher gravity, you'd end up with a kind of runaway greenhouse effect, where water would evaporate i...
What would the planet be like? Cold. Very cold. Methane is liquid between −182.5°C(−296.4°F, 90.7 K) And −161.49°C(−258.68°F, 111.66 K), so very, very cold. On "warm" days the seas would boil. ...
You can do it most effectively by looking before you get there. Point your big telescope at the sky in the direction of your destination star. Record the image it captures. Repeat step 1 every mo...
Do it over time. On each rocket launch, you can attach a bit of the required resources. Give it some small booster rockets to direct it the right way. When the rocket is at the peak of its parabol...
Like Samuel mentioned in a comment, the effects would be minor to slim at most, and probably not detectable except from a significant distance. Nebulae are extremely sparse. Wikipedia states that ...
Collapse. Gravity takes care of this. As soon as you remove the core from the Earth, you have a large void in the middle of it, and a lot of gravity acting straight towards the centre of that void...
The pupil is black not because it's coloured, but because there's no light coming back out to colour the image you see. A pupil any other colour than black implies light coming back out, which in ...
As Pavel says, brainwashing is a process. And it's a process that's been done already. 1995, Russia. The Cold War is over. Boris Yeltsin in power. There is some resentment left over from the Cold ...
Note: for the purposes of this answer, I have assumed no tech remains. If you do have tech surviving, then many of these steps will be easier. There seem to me to be a number of steps that you mus...
Communication Seawater is highly resistive to radio waves at the frequencies we usually use them. (see page 7, section Sea Water.) However, at lower frequencies, 10-30 kHz, it is entirely possible...
First and foremost, everyone would not be infected, let alone die. Look at Brazil and Peru and the tribes of the Amazon, many of whom still haven't been contacted. Since they have no human contact,...
You could certainly try. A less sensible method, if your local astrotech store sells them, is to get hold of a mass transporter and a matter inversion matrix (though in many timelines the latter c...
tl;dr: Such a world would be quite different from ours. Basically, all modern formulations of classical mechanics fail on it, and you also could not base that world on an underlying quantum theo...
Absolutely. This would only take a few simply steps, and a small bit of luck. Here's how it could happen: A protostar forms from a collapsing gas cloud. A giant sphere of gas and dust collapses ...
Let's listen to the head of the colonization movement, who happens to give a speech about this topic right now: Ladies and Gentlemen, thank you for giving me the opportunity to tell you about t...
You wrote: Just to give the background...I have the vision of an ancient race who's star saw it's end. They relocated to a star moving significantly slower than the majority of those in the gal...
I don't think we're going to find any evidence (like TimB did for this question) that life does exist on extrasolar gas giants, but we can at least use some logic to figure it out. No. First, the...
As far as I can tell, the major changes would be to the human digestive system, as well as to all body parts involved in processing food. Teeth The teeth of carnivores and herbivores differ becau...
No. I hate that that's my token response to things like this (I really should be more creative), but it seems pretty unlikely for a few reasons: Low surface gravity: Pluto's mass is 0.00128 time...
Yes, but not in the way you imagined. Vincent mentioned a Worldbuilding question which directly addresses the possibility of a figure-8 orbit. No offense intended, I don't think any of the answers...
The way I would approach this is to modify the cells that produce scales - and have any design as a series of scale shaped pixels. This would mean that the effect would be permanent, as each new s...
