Perry was part of Blue Origin's all-female spaceflight on April 14. Mariah Carey fans are loving a video of her learning about Katy Perry's trip to space — almost four months after the fact. The singer was asked in an interview if she would like to go to space as Perry did, but Carey expressed some disbelief: "Did she go to space?"

"Into orbit and back? She's, like, floating?" Mariah Carey asked about Katy Perry. "And this is true? Wow. All right, Katy."

It would seem Mariah Carey is just a bit spacey, since the diva extraordinaire missed some pretty big news recently in the worlds of both pop culture and science.