So let's say a yellow sun like ours became a red giant, but had planets in an orbit that would be within the red giants body(?), would those planets still orbit within the sun or would the planet be destroyed or flung outwards? submitted by /u/danceswithninja5 [visit reddit] [comments ..read more

if someone where to go into a wormhole, and to go back to the specific point in time they came from, go into another wormhole. if they themselves left that dimension, for the short time they were gone, they didn’t exist in that timeline for that time being, so them returning to a time which they haven’t existed in yet, doesn’t make as much sense as them returning to the point before they went into the wormhole, but wouldn’t that result in two versions of them existing? submitted by /u/Potential_County_929 [visit reddit] [comments ..read more

submitted by /u/TheScienceVerse [visit reddit] [comments ..read more

Can gravity be related to the speed of the planets? I suppose yes, but enough to generate what we call dark matter? submitted by /u/Upset_Cattle8922 [visit reddit] [comments ..read more

I'm writing a sci fi novel and looking for the most plausible wormhole concept according to current science. Specifically traversable wormholes, preferably in both directions, that could be created with a device. I'm thinking Morris-Thorne Wormholes, Lorentzian Wormholes or Vissal's Polyhedral Wormholes, or suggest yours. I'd appreciate any clarifications or if you could point me in the right direction, thank you. submitted by /u/Medium-Opposite7599 [visit reddit] [comments ..read more

This might be the wrong place, but I have a question. Theoretically, if humans were able to create new planets, what would the maximum number of (habitable) planets be that could exist in our solar system. submitted by /u/zeheama [visit reddit] [comments ..read more

submitted by /u/TheScienceVerse [visit reddit] [comments ..read more

submitted by /u/spacewal [visit reddit] [comments ..read more

I’m not a AP student and i’m not relative to the domain, but a general idea that i have in my mind which is: Lets imagine a rope or a wire stretched through out the visual universe from edge to edge so we can assume that the wire length is 93 billion light years based on what we have. The main idea is if we pull one edge of the wire 1 meter ( not counting the weight off course ) logically the entire rope will be pulled 1 meter too , if that is true then the force on the wire passed faster than light which we cannot assume that because nothing can travel faster than light. If this is not the c ..read more

How come redshift does not violate the law of conservation of energy? submitted by /u/raitodenki [visit reddit] [comments ..read more