In a new ‘Vanity Fair’ interview, Grimes revealed that she and Elon Musk secretly welcomed their second child with help from a surrogate in Dec. 2021.
This was the first time that the private couple has publicly announced the news of their second baby. They are already parents to a son, X Æ A-Xii Musk. They named the baby girl Exa Dark Sideræl Musk.
Grimes further opened up about the meaning of her daughter’s name in the interview.
She shared that Exa refers to the term exaFLOPS, which is the “ability to perform 1 quintillion floating-point operations per second.” She also shared that the baby’s middle name, Dark, is in reference to the unknown. “People fear it but truly it’s the absence of photons,” Grimes explained. “Dark matter is the beautiful mystery of our universe.”
The singer also confirmed the pronunciation of “Sideræl” — sigh-deer-ee-el — and said that it’s meant to be a “more elven” way to spell “sidereal,” the “true time of the universe, star time, deep space time, not our relative Earth time.”
Grimes made it clear that she intends to keep her kids out of the public eye. “I’m not at liberty to speak on these things,” she admitted. “Whatever is going on with family stuff, I just feel like the kids need to stay out of it.”