Pre-dawn planet in the East tomorrow morning with all 5 planets visible with just your eyes. From the horizon up: bright Mercury, super bright Venus, reddish Mars, very bright Jupiter and yellowish Saturn. July night sky info: planetary.org/night-sky/nigh…

Please consider leaving a review if you have my new book, Solar System Reference for Teens. Reviews help people decide if this book is right for them. Thank you!! To order or review: amzn.to/3sbJa57 A couple sample pages:

My new book Solar System Reference for Teens is available on sale TODAY!! It's been ruff getting it all done, but the big day is finally here and the book looks great. More info and order at: amzn.to/3sbJa57

Not just planets, but also amazing moons are covered in my new book, Solar System Reference for Teens. Some of the most incredible Solar System worlds are moons including the Galilean satellites of Jupiter. Learn more/pre-order here: amzn.to/3sbJa57

My picture of the 2017 total solar eclipse is one of more than 160 space images in my new book, Solar System Reference for Teens. Learn more about the book and pre-order here:amzn.to/3sbJa57

A Table of Contents AND a Glossary -- we went all out for my new book, Solar System Reference for Teens. Learn more about the book and pre-order here: amzn.to/3sbJa57

Beautiful Galileo image of active volcanic eruption on Jupiter's moon Io (enhanced color combined with infrared) -- one of more than 160 images in my new book, Solar System Reference for Teens: amzn.to/3sbJa57 Image: NASA/JPL/U. of Arizona

Read it backwards or forwards: my new book, Solar System Reference for Teens. Learn more about the book and pre-order: amzn.to/3sbJa57

LOOK: In the pre-dawn East, very bright Jupiter and reddish Mars are super close together. Tomorrow (5/29) they are closer than a full Moon width, growing apart as days pass. Super bright Venus (below) and yellowish Saturn (above) also join the party.

My new book arrived, Solar System Reference for Teens. Happily added it to the book shelf. Can't belive this is my sixth book! More info and pre-order at: amzn.to/3sbJa57