720
First contact when?
(lemmy.world)
Post memes here.
A meme is an idea, behavior, or style that spreads by means of imitation from person to person within a culture and often carries symbolic meaning representing a particular phenomenon or theme.
An Internet meme or meme, is a cultural item that is spread via the Internet, often through social media platforms. The name is by the concept of memes proposed by Richard Dawkins in 1972. Internet memes can take various forms, such as images, videos, GIFs, and various other viral sensations.
Laittakaa meemejä tänne.
It's obvious that stars provide obscene, unimaginable amounts of energy. It's also clear that this energy can be captured and stored.
We, currently, can't exit our orbit without using oil, but that does not mean it's theoretically impossible.
Climate change is just one of six planetary boundaries that we've crossed, out of a total of nine. The choice of rocket fuel is largely inconsequential compared to the effects of maintaining the industrial capacity necessary for such endeavours.
Don't most rockets use hydrogen oxygen reaction? Separating hydrogen from oxygen requires only electricity, which we can produce renewably.