Can you reach the main site right now? https://www.nomanssky.com/ now says the connection is not secured, maybe their https certificate ran out on a Sunday.
When I try it without www or without https, it forwards to a forgotten copy of the pathfinder site without stylesheet.
Getting a similar to @Polyphemus insecure warning (using a couple of different programs).
Hello Games must have upset the Atlas by letting the sentinels get corrupted 
Almost smacks of an ARG…but no…
Looks like an old security certificate got uploaded to the site (valid: 6/15/21 - 6/15/22). Could be a maintenance messup, or maybe got hacked?
The former is highly likely. Doesn’t take much to make a mistake like that. The second case… Well, let’s just say if somebody unauthorised can replace your certificate, you got hacked so deep that the only proper analogy would be that somebody stole your house while you were out for the evening…
Not only did the certificate expire last June, it also looks like it is a self signed cert. Kind of like when one of my groups would check the testing certs into the repo and it overwrites production.
Seems fixed now 
