Elon Musk and Grimes become parents again, welcome second baby...

This time, daughter was born via a surrogate.... Twitter reacts to daughter's name... 'Honestly. it's much better'...

Billionaire entrepreneur Elon Musk & musician Grimes have had a second child, a girl they named Exa Dark Sideræl Musk

The 33-year-old Grimes said the baby was born in December..in an interview published Thursday by Vanity Fair...

Grimes explained her daughter’s name, said Exa refers to supercomputing term, exaFLOPS, while Dark represents "the unknown."

She added spelling of sidereal means the true time of the universe, star time, deep space time, not our relative earth time."

Grimes also has a 22-month-old son –  X Æ A-Xii with Tesla CEO, Elon Musk... The duo had announced their separation.. But it appears that the two are back together.