[Etheryte]

Every section has an information button which says where the data is sourced from.

[SamBam]

I think the question may have been more about method of updating.

I know the USGS websites have great API support, and I imagine the NASA solar flare reporting does as well, so I expect most of this is automatic.

The ones going to Wikipedia articles must be done by hand, so those will stop being updated when Neal gets bored of updating.