Theia gave this planet life... gave this entire planet so much meaning for the past 4.5 billion years... Who, as a parent, cannot say that their children have done the same for them? Utterly changed everything about them...
For two scientifically-minded individuals... I think it's the perfect name.
Dibs on a daughter, no ginger boys!
Actually, after talking to Raquel I may have changed my stance on having a son. My uterus and I are discussing the possibility.