I think we need a new category that includes dwarf planets and moons, but does not include gas giants and anything too small to have an atmosphere. Basically a "could be terraformed in a sci-fi novel" category.

the thing about an atmosphere is that it protects you from a lot of radiation. like, alpha radiation makes a significant part of the radiation hitting you in outer space, but it's too weak to go through a sheet of paper so it's also gonna be stopped by an atmosphere of a planet. and the same goes for beta radiation, which is also easily stopped by an atmosphere. and that's significant because it protects you from like 99% of all (particle) radiation.

on top of that an atmosphere replenishes volatile chemicals like CO2 and H2O all the time (or at least some volatile molecules) and that's nice-to-have.

Also important is the heat capacity of the atmosphere. Even if the atmosphere is thin, it makes a lot of difference. I should go about calculating the difference that mars' atmosphere makes in terms of temperature sometimes. Like, how hot/cold would it be in the day/night if it didn't have an atmosphere. I guess it would be more extreme, but by how much? I should look into that sometime.

Anywhere you could land and walk around should be considered a world.

That would disqualify the gas giants. I think the criteria needs workshopping..

Ew humans

humans are a virus and the earth has a fever

now one might be tempted to say that that's a bad thing, but in my experience you can also catch a fever when you're really positively excited about something. and virus ... well, let's say, to me it's not an all-negative term either. knowledge is a virus (i wish i could link to an earlier blog post of mine about this, but unfortunately i never wrote down my ideas about this). basically, knowledge spreads just like a virus, it's immaterial, consists of information, and has the typical replication patterns of viruses, including being subject to mutation and selection.

You've described the Aristotelian-Ptolemaic model which dates back to the 2nd century CE. This was part of, but not the extent of the mideval cosmography.

In the cosmography of the middle ages, there existed a realm outside the spheres where God and the angels dwelled. Each of the planets color the divine light of God and pour God's beneficence upon the Earth. The earth was low and seemingly distant from the heavenly realms. And in the middle of the earth was hell.

A competing mideval theory put God at the center and the Earth at the most distant sphere. It borrowed from another tradition, the Neoplatonists. Here God is a a pure light and the sphere distort the light of God. Humans couldn't handle the pure light of God, but all the distortions make the universe appear fractured and not unitary. We don't see God in everything, just the many things.

True, get rid of the rich people and it could probably be like an A or B tier

1L Applejuice, 200g banana bread, 1200μg LSD, a cup of coffee and a cigarette. You know, the usual.

Eeeeh relax guy!

What are you on about, it was on Facebook so it must be true.

I can even quote a trustworthy news article:

Trustworthy guy on Lemmy went to all planets

Sources: russiantrollarmy.gov, foxnews.com, infowars.com, thewhitehouse.gov

Other planets are pretty good.

It was pretty nice in uranus.

Fun fact, Neptune is more of a sea foam green than a blue. https://youtu.be/zKSWcFCMrGU