If i were to judge solely on the illustrations, I would probably give this book an R*:  The illustrations are fabulous, somehow managing to be space-agish while having a certain vintage quality at the same time. But I am less thrilled with the text:  at times the rhythm seems a bit forced, and it can’t seem to decide whether it wants to be factual or fanciful. The rhyming text tells of an adventure on a rocket that only flies once a year,to fly out among the stars and see a giant banner wishing the earth happy birthday.  The last page offers some informational text explaining roughly how old the earth is, and potting the light power of the sun in terms of birthday candles.