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redphoenix932 t1_ix6zo82 wrote

Because for awhile the universe inflated faster than light. Space can move as fast as it wants, it’s only things “in” space that have to follow laws.

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moonsoundsonsnow t1_ix70bsg wrote

but what is the reference point for which the velocity of the expansion of space is measured?

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triffid_hunter t1_ix70n30 wrote

Doesn't matter.

Cosmic expansion behaves like new empty space is being injected everywhere all at once, not like some sort of border moving away from a specific point - ie more like bread rising in the oven than a spreading puddle.

Thus, the expansion of space looks pretty much the same from all locations.

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This_Username_42 t1_ix74byy wrote

I went to undergrad for physics and took some (not many) Astronomy courses and I do not think I knew this. Thanks

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IronSmithFE t1_ix7273z wrote

space is chaos, it doesn't move nor can it do anything else. it is the nothingness between matter.

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Street-Badger t1_ix734ya wrote

Space itself is expanding everywhere we look, flinging distant objects away from us faster and faster. This is called the Hubble constant. Physicists have no idea why, so they call it ‘dark energy’.

Some of what you see in the night sky is already beyond our reach forever, even if we could travel towards it at 1.0c, because the objects have accelerated away from us in the interval since the light was emitted.

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pineapplecooqie t1_ix73zsr wrote

space absolutely expands, and that expansion happens at a measurable rate. I've no idea what you think you're talking about.

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