"Twinkle Twinkle Little Star" has persisted as a lullaby because it's sweet and catchy and encourages curiosity and star-gazing. It also doesn't explain a damn thing about astronomy, something this updated rendition of the traditional ditty strives to correct.
Like a diamond in the sky is pretty imagery but also probably responsible for the objectively false notion that stars are shiny rocks and not luminous plasma.
Written by Henry Reich and Zach Weinersmith, this more accurate version of the song retains its sweetness while informing children and adult children's song enthusiasts about the importance of adaptive optics. There's also a book version illustrated by Chris Jones, and you can buy the song on iTunes or Amazon if you're looking for something educational to throw on during long drives to holiday parties with the kids in the backseat.