The copyright dates are from the late 80’s into the early 90’s
They are hardbacks about 10” by 8” in size
Most have around 32 pages with lots of illustrations and photos.
Most are in good condition with a few that have minor problems. Two have nicks on the front cover edge. Some books have a few wavy pages. They aren't bad.
Quasars, Pulsars and Black Holes
Mythology and the Universe
Mars Our Mysterious Neighbor
Our Solar System
Pluto a Double Planet
Colonizing the Planets and Stars -has a small nick on the front cover
Piloted Space Flights
Mercury the Quick Planet
Saturn The Ringed Beauty
Unidentified Flying Objects
Earth Our Home Base
The Space Spotter’s Guide
Is There Live on Other Planets
The Birth and Death of Stars
The Earth’s Moon
How Was The Universe Born
Rockets Probes and Satellites
Science Fiction Science Fact
Jupiter The Spotted Giant
Uranus The Sideways Planet
Comets and Meteors
Did Comets Kill The Dinosaurs
Our Milky Way and Other Galaxies
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Refunds are made if the item description is grossly in error. Please contact the seller within 7 days of receipt of item.