Yet that space probe was over ten thousand miles away.
Several space probes have gone to Mars to study it.
But this could change if scientists think that the space probe will be damaged.
As a result, only two space probes have visited the planet so far.
The space probe later misses the Moon by 22,000 miles.
"Another space probe has been detected coming from the third planet."
The Americans had pioneered the technology for the space probes.
On March 29, 1974, it becomes the first space probe to reach that planet.
At the moment he was responsible for the production of automatic space probes.
In the following years, the telescope was used to track a variety of space probes.
Wörterbuch für astronautische Begriffe