>>511381131 (OP)This is not enough to go on. Context matters more than the news itself.
1) We have detected a peer level civilization 150 light years away, this is conclusive proof. It will be in the news for awhile, people will get used to it, nothing changes.
2) Aliens have made contact, huge news
3) We have known for decades, huge news, will disrupt the balance of power. More so if they have technology or artifacts
4) We are working for them, fundamentally will change civilization
5) They are here to conquer us. Game over.