Get 20% off on Used items, available in-store and online. Offer valid May 24–26, 2025. This offer
cannot be combined with other discounts or coupons and does not apply to previous purchases. Offer
cannot be used to buy gift cards or items labeled as 'New' on HPB.com. Sale prices will be reflected in
your cart.
Get 20% off on pre-owned items, available in store and online. Offer valid May 23-26, 2025. This offer cannot be combined with other discounts or coupons and does not apply to previous purchases. Offer cannot be used to buy gift cards or items labeled as 'New' on HPB.com. Sale prices will be reflected in your cart.
Pickup at HPB West Lane Avenue
Out of stock at HPB West Lane Avenue
Check other stores
Astronomers have been working for decades to locate and identify all of the planets they can. There are eight planets in our solar system, and there could be billions more throughout space. Readers (Grades 3-5) will discover what methods these scientists use, how new technology has helped them see further than ever, and why some scientists think that faraway planets could be home to life forms unlike anything on Earth.