Follow up to this post from a couple years ago in light of the extended downtime of mander.xyz.

What space communities currently exist?

• !space@lemmy.world (closed, redirects to !space@mander.xyz)
• !space@lemmy.ml (active poster, sporadically active moderator)
• !space@sopuli.xyz (dormant, active moderator)
• !space@lemmy.science.social (single-admin instance)
• !space_astronomy@piefed.social (new community, active moderator)

What astronomy communities currently exist?

• !astronomy@lemmy.world (active posters, inactive moderator)
• !space_astronomy@piefed.social (new community, active moderator)

Re: Community naming ("Space" vs. "Spaceflight" vs. "Astronomy")

I think that "space" is the most general term, with "astronomy" and "spaceflight" being subsets.

Examples:

• Interesting data from a telescope? Astronomy and space, but not spaceflight.
• A new GPS satellite is launched? Spaceflight and space, but not astronomy.
• The Perseverance rover drills into a neat rock on Mars? Space, but not really astronomy or spaceflight.
• A new space telescope is launched? Definitely all three.

Thoughts on which would be best to move to?

My votes would lean slightly towards !space@sopuli.xyz and !astronomy@lemmy.world, but I'd be interested to hear other people's thoughts.