 | United States. Congress. House. Committee on Appropriations - 1970 - 962 lapas
...unmanned vehicle which will be sent to land on Mars and U Investigate Its surface. In the late 1970s, the "Grand Tour" missions will study the mysterious outer planets of the solsr system -- Jupiter, Saturn, Uranus, Neptune, and Pluto. The positions of the plsnets at that time... | |
 | Homer Edward Newell - 1980 - 532 lapas
...unmanned vehicle which will be sent to land on Mars and to investigate its surface. In the late 1970s, the "Grand Tour" missions will study the mysterious...Preparations for this program will begin in 1972. 442 There is one major but longer range goal we should keep in mind as we proceed with our exploration... | |
| |
... new information about the universe, the solar system, and even our own planet During the next decade, we will also launch unmanned spacecraft to all the planets of our solar system, including an unmanned vehicle which will be sent to land on Mars... 