this post was submitted on 23 Jan 2024
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No Stupid Questions

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This is something that has been bothering me for a while as I'm diving through space articles, documentaries etc. All seem to take our observations for granted, which are based on the data of the entire observable universe (light, waves, radiation...) we receive at our, in comparison, tiny speck. How do we know we are interpreting all this correctly with just the research we've done in our own solar system and we're not completely wrong about everything outside of it?

This never seems to be addressed so maybe I'm having a fundamental flaw in my thought process.

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[–] [email protected] 1 points 9 months ago* (last edited 9 months ago)

Bruh. We can see it. We can also “see” wavelengths not visible to the human eye with radiotelescopes n shit.

You can see Andromeda, a whole-ass different galaxy, with your naked eye.

[–] [email protected] 0 points 9 months ago

Voyager 1 has left the solar system and is in interstellar space, it hasn't reported anything anomalous so far.

[–] [email protected] 1 points 9 months ago* (last edited 9 months ago)

It's the same way you know the things outside your window are real. You look at the light coming to you from that object and make inferences as best you can. As long as new observations and inferences line up with old observations and inferences, then you can be reasonably confident that your growing model of the outside world is accurate. When something doesn't add up then you revise your model and keep iterating with new observations.

There's no difference whether the object appears to be within our solar system or far outside it. We see something and we interpret what we can from the available observations. Occasionally, if something is close enough and interesting enough, we send a robot to orbit the thing or maybe land on it and gather better observations, like how Rosetta/Philae visited a passing comet.