Voyager 1

[Filterlab]

What's it expanding into?

[oldoakknives]

What's it expanding into?

I think nothing exploded and is expanding into nothingness.

[ViperStripes]

I think nothing exploded and is expanding into nothingness.

That's what blows my mind, if all the mass was in one "dot" before the big bang and the universe didn't exist, what did that dot exist within? And now it's expanding what is it expanding into? Is it a big box and the universe will hit the walls eventually? If so what is the box in? Another box?

It presumably has something to dowith there being no edge and it sort of wrpas back around on itself in a dimension we don't understand i.e. in the same way the earth is a globe and you can go roudn in any direction and get back to where you started if you go far enough in one direction in the universe will you get to the opposite side of the universe from which you were heading. James Webb telescope might give us more clues and it's successor in 30 years time might be able to go even further.

[Tokyo Tokei]

While not possible to move faster than the speed of light in this particular universe, the key word there is "in".

If this universe itself is continually expanding, the edges may be moving faster than light. In which case at some distance (the cosmic event horizon) light, or anything else, will never be able to be received back here. Too all intents and purposes, that distance is the edge of the universe, from our perspective at least. Even though there is stuff beyond it. We'll never see it, detect it, or otherwise know of its existence.

This works the other way too. Observers beyond the cosmic event horizon will never be able to detect signals from our part of the universe. Scientists have speculated this is the universe's way of providing at least one area untouched by even a distant echo of vigorous Rolex debate.

[Daddelvirks]

While not possible to move faster than the speed of light in this particular universe, the key word there is "in".

If this universe itself is continually expanding, the edges may be moving faster than light. In which case at some distance (the cosmic event horizon) light, or anything else, will never be able to be received back here. Too all intents and purposes, that distance is the edge of the universe, from our perspective at least. Even though there is stuff beyond it. We'll never see it, detect it, or otherwise know of its existence.

This works the other way too. Observers beyond the cosmic event horizon will never be able to detect signals from our part of the universe. Scientists have speculated this is the universe's way of providing at least one area untouched by even a distant echo of vigorous Rolex debate.

Ha ha, very good.

But yes, that's about it, we are currently seeing things that will disappear over the event horizon never to be seen again.

Even if warp speed is possible (warp 10) we will will only be able to cover a tiny part of our own galaxy.

[Saint-Just]

This works the other way too. Observers beyond the cosmic event horizon will never be able to detect signals from our part of the universe. Scientists have speculated this is the universe's way of providing at least one area untouched by even a distant echo of vigorous Rolex debate.

This cosmic horizon you speak of, is it the place the ancients referred to when they said "I'm gonna put this somewhere safe"? I heard it was an old incantation that opens a portal to a random point in another timeline, through which all safely kept things travel, never to be
seen again.

[Filterlab]

I think nothing exploded and is expanding into nothingness.

Ahhh, of course.

Here on earth an explosion takes quite a concerted effort to conduct, in space however, where there was nothing, it appears to have been quite easy.

I've never been wholly convinced at the big bang theory.

[monogroover]

Ahhh, of course.

Here on earth an explosion takes quite a concerted effort to conduct, in space however, where there was nothing, it appears to have been quite easy.

I've never been wholly convinced at the big bang theory.

As the theory goes - the Big Bang wasn't really an explosion, but in any case the conditions prevailing at the very beginning of time, before even atoms existed were so different that it's not meaningful to compare it to an explosion on Earth. The laws of physics may have been different.