Join Donate

The Planetary Report • September/October 1983

Sundown for Viking

On the Cover: The Sun has set on Mars, but twilight lingers, casting a reddish glow on the Martian surface (left) and the top of Viking Lander 1 (right). Red dust in the atmosphere scatters the sunlight, producing the color of the sunset. The coloured rings in the sky are not real; they are artifacts of severe contrast enhancement produced by computer processing of the camera's transmitted image.


3 The Last Viking: Long-time science journalist Jonathan Eberhart gives a poetic summary of the Viking mission to Mars.

7 Seeing Through Sand: Charles Elachi and Ronald Blom use radar imaging to peer through desert sands.

10 Venus Revealed: Brown University planetary geophysics graduate students James B. Garvin, Maria T. Zuberand Paul Helfenstein take us on a photographic tour of the Venusian surface with Venera images.


13 Society Notes The Hungarian connection.

14 News & Reviews "The Great Extinction" and other mysteries.

15 World Watch Venus Radar Mapper, Galileo, Cassini, and future Soviet mission plans.

, , , , , ,
Bill Nye and people
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Today

The Planetary Fund

Help advance robotic and human space exploration, defend our planet, and search for life.


You are here: