Say hello to HL Tauri, a protoplanetary disk about 450 light years from Earth. HL Tauri is just a baby but well on it's way to having planets coalescing out of it's rings of dust. A star will exist for some time before one can say it has planets, at some point they will first be referred to as planetesimals when they have gathered enough debris surrounding it's star but not enough to have cleared the rings and cooled. It is thought that the gaps one can already see in the photo are actually the orbits of Tauri's planetesimals that will continue to draw in material from the rings until they have the debris cleared from the system. Then, whallah, planets. We don't have the kind of resolution *yet* that would allow us to actually see Tauri's planetesimals.
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I think Archegnum made a mistake and meant to ask why "evolutionists" believe that the Sun existed before the the planets. The answer is that everything we have investigated to date (from astronomy, cosmology, geology, radioactivity in various forms right here on Earth and the solar system) has pointed that direction and has largely been shown to be correct by more recent observations. Like HL Tauri for example.
We really need to hammer home to the ignorant the absurd nonsense of calling all aspects of science they reject "evolution" or people who accept the results of science "evolutionists". As Kanna pointed out, they misuse the terms and intentionally conflate everything they reject as "evolutionism" or "darwinism" either because they don't understand and swallow what they grab from apologists, or they are dishonest apologists who intentionally conflate everything to hide the fact they are rejecting nearly every independent discipline of science. It gives them, in their mind and minds of gullible followers, one target to attack when in fact it's the rejection of multiple independent facets. They need to have their feet held to the fire and own up to the fact that it is exactly what they do.
(edited like 30 times)(also, if Archegnum can't be bothered to find one of many documentaries that cover this shit, grow a lazy pair and at least find something on YouTube, this shit ain't difficult, sadly, cracking open a book (a different one) would probably be too much to ask)