Are there any admins on list from nasa?
Looks like there might be some DNS trouble for the glam1.gsfc.nasa.gov servers. Some DNS providers (9.9.9.9) work ok, but others (Google, Open DNS) return a non existent domain error.
I just checked with NASA DNS ops, and they said that it was a DNSSEC issue with the delegation from .GOV, which has since been resolved.
-Bill