
The Surface of Mars
The remarkable pictures taken by Mariners 6 and 7 reveal a planet with features unlike those seen on the moon and also unlike those on the earth, including a polar cap evidently composed of dry ice

The Surface of Mars
The remarkable pictures taken by Mariners 6 and 7 reveal a planet with features unlike those seen on the moon and also unlike those on the earth, including a polar cap evidently composed of dry ice

The Infrared Sky
A telescope with a 62-inch plastic mirror has provided the first comprehensive survey of the night sky at infrared wavelengths. It has revealed some of the coolest celestial objects yet detected

The Photographs from Mariner IV
How they were made and what they show is reviewed. The second of three articles on the remarkably successful Mariner mission