Really National Geographic? Really?

This morning Phil and the boys were reading this book while I ate breakfast with Eliza. We're listening as Phil reads the following,
"The sun, and everything in our solar system (even us!), is made of the exploded leftovers of ancient stars. We are made of old stardust!"
Phil stops and I stop. We're staring at each other in confusion. Phil questions if he just read what he read. Yes-this book is from the elementary school's library. Who knew we'd find our origins in a book by the National Geographic. Luckily Ty and Chase had no idea what Phil was talking about and we quickly reminded them that Heavenly Father and Jesus made us-and we're pretty sure we aren't just "stardust." That just sounds so fairly-like to me! Anybody else find this to be a little disturbing? I can see this in a public library, but I just think the elementary school's should have books full of the basics. I mean-if they have this-why not the Book of Mormon and Bible too?!?!?!?