Bard has made me a bit lazy.
The universe is expanding, and it has been expanding since the Big Bang. This means that the distance between two points in space can increase over time. So, even though the Big Bang happened 13.7 billion years ago, the universe is now much larger than 13.7 billion light years across.
In fact, the observable universe is about 93 billion light years across. This means that the light from the most distant objects we can see has been traveling for 13.7 billion years, but the objects themselves are now much farther away than that.
The reason for this is that the universe is expanding at an accelerating rate. This means that the farther away an object is, the faster it is moving away from us. So, even though the light from the most distant objects has been traveling for 13.7 billion years, those objects are now much farther away than that.
Bard has made me a bit lazy.
The universe is expanding, and it has been expanding since the Big Bang. This means that the distance between two points in space can increase over time. So, even though the Big Bang happened 13.7 billion years ago, the universe is now much larger than 13.7 billion light years across.
In fact, the observable universe is about 93 billion light years across. This means that the light from the most distant objects we can see has been traveling for 13.7 billion years, but the objects themselves are now much farther away than that.
The reason for this is that the universe is expanding at an accelerating rate. This means that the farther away an object is, the faster it is moving away from us. So, even though the light from the most distant objects has been traveling for 13.7 billion years, those objects are now much farther away than that.
The other answers are correct but seem to miss one fundamental fact, which is that the speed of light is only a speed limit for *objects* moving within space. Space *itself* is free to expand much faster than the speed of light.
Imagine matter in space as beads on a bungee cord. The beads can only move along the cord at the speed of light, but the bungee cord can stretch as fast as it wants. The space between the beads will expand without the beads themselves actually moving in space.
The other answers are correct but seem to miss one fundamental fact, which is that the speed of light is only a speed limit for *objects* moving within space. Space *itself* is free to expand much faster than the speed of light.
Imagine matter in space as beads on a bungee cord. The beads can only move along the cord at the speed of light, but the bungee cord can stretch as fast as it wants. The space between the beads will expand without the beads themselves actually moving in space.
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