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There’s nothing in space to push away layers of the sun like that, like a ball of hardened sand through water.

The sun isn't moving except relative to other objects. It is as true to say it is stationary as it is to say it is moving.

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Remember, the sun isn't on fire. It is a big fusion reaction, generating heat and light and other electromagnetic output.

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This photo from Apollo 11

Taken by Michael Collins from the command module as the lunar lander ascent stage is approaching.

Every human being alive at the time, except one is in that picture.

Those sketches are stunning and will definitely be adding them to the gallery, thanks!

What a great idea!

A little-known fact is that Galileo observed Neptune in 1633 while studying Jupiter, 233 years before the planet was actually discovered in 1846. He thought it was a background star. A 2009 study even suggests that Galileo was well-aware of Neptune's movement and therefore could be credited as the discoverer of the 8th planet.

This paper has some of Galileo's sketches of Jupiter and Neptune, you might be able to use these in your gallery.

Cool idea, didnt consider the Apollo programs

Lots of cool apollo stories. You can Google some of those and might find something too?

Albeit fairly well known, this is exactly the type of stuff I’m looking for - extra information on where it came from is new to me, very much appreciated!

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Perhaps the Wow! signal would fit your standard? https://earthsky.org/space/wow-signal-explained-comets-antonio-paris/

For a point of comparison, this was a proposal for a mission at the edge of the solar system

https://en.m.wikipedia.org/wiki/TAU_(spacecraft)#:~:text=TAU%20(Thousand%20Astronomical%20Units)%20was,other%20stars%20via%20stellar%20parallax.

Once in 175 years, actually. The next window that allows this path will occur in 2152.

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New Horizons "It is the fifth space probe to achieve the escape velocity needed to leave the Solar System."

Lucy and Juno will never be Intergalactic probes.

It's a good point. As hard as it would be, sending a Hubble Space Telescope type but with extra equipment.. but send it straight up from the galactic plane, looking back at us. Could be real cool

This, New Horizons is almost the same thing. It will take such a long time for it to get anywhere interstellarly interesting, and I'm not sure there is a whole lot else to be gleaned from deep space cruising with the newer technology. Looking more closely at the things in our back yard that we don't yet understand is generally better bang for buck than sending out fly-by probes.

One other thing, I think we're about out of Plutonium 238. That's the stuff that makes long-term deep space probes possible. It's super effective for RTG's - the radioisotope thermoelectric generators that power space craft/probes like the Voyagers. I heard they were going to start making more a while ago, not sure if that situation ever improved. Basically all the Pu238 we ever had was a byproduct of cold-war era nuclear weapons production, which thankfully ceased at the end of the cold war.

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Absolutely essential piece of information in order to understand the Voyager missions, IMO, should be the top answer to the question posed by OP.