Notes: In artwork on front cover a very small "HARDY" is on the back of the larger spaceship. No statement of edition or printing on copyright page. First numbered page is 5 but only one unnumbered page prior to that. Page 63 is pasted down onto inside of rear cover. This edition has significat differences to the earlier edition (thus): - Change of typeface for section titles and sometimes addition of subtitle - Introduction image replaced with new image (tripods). - Space Stations. Skylab/Soyuz docking image from Introduction moved here, - Space Cities. New section. Shuttle line drawing moved here, new image added. - The First Lunar Base. Retitled from Moon Base otherwise unchanged. - Mars: After Viking. Mars 2 (Martian Base) image moved here. - Martian Bases. Retitled from Mars 2. Mars 3 image moved here. Martian crater photo not present. - Mars 3 section removed. Image on page 16 replaced with new image. - Moons of Mars. Retitled from Mars 4 otherwise unchanged. - Venus: Hell Planet. All images replaced with new images. - Venus 2. Section removed. - Mercury: Elusive World. B/w image of Mercury changed. - Asteroids: The Minor Planets. Unchanged other than addition of subtitle. - Jupiter: Killer Planet. Main page image replaced with new image. - Saturn: The Ringed Giant. Unchanged other than addition of subtitle. - Titan: Largest Moon. Main page image replaced with new image. - Iapetus. Section removed. - Uranus: Night Planet. Unchanged other than addition of subtitle. - Neptune: Distant Giant. Unchanged other than addition of subtitle. - Pluto: Frontier Planet. Unchanged other than addition of subtitle. - Titan: Largest Moon. Main page image replaced with new image. - The Grand Tour. Section removed. - Comets: Wonders of Space. Unchanged other than addition of subtitle. - Beyond the Known Frontiers. Retitled from Our Place in the Galaxy otherwise unchanged. - Interstellar Communication. Section moved unchanged to here as opposed to end of the book. - Far Beyond the Sun. Retitled from Distant Stars otherwise unchanged. - Red Supergiants. New section, new added image. - Twin Suns. Retitled from Distant Stars 2 otherwise unchanged. - Distant Stars 3. Section removed. - Tiple Suns. Retitled from Distant Stars 4 otherwise unchanged. - Distant Stars 5. Section removed. - The End of a World. New section, new added image. - Intergalactic Travel. New section, new added image. - The Photon Star-ship. Retitled from Distant Stars 6 otherwise unchanged. - The Asteroid Ark. New section, new added image. - Interstellar Warfare. New section, new added image. - Conclusion: The End ? Unchanged other than addition of subtitle. Price printed on front flap of dustwrapper but PV1 copy also has large black Mitchell Beazley/Sidgwick and Jackson price sticker on front and pasted down black label/white text (Mitchell Beazley Publishing Limited London / in association with Sidgwick & Jackson Limited) on title page.