They could have been damaged by hitting rocks. They could also have been damaged if the landed on a place where one of the legs of the module went into a hole. So it was important for them to find a flat clear area to land.
A lander called a "Rover".
No, the moon's gravitational pull on the earth is the dominate cause of tides in the oceans. When the Apollo moon missions were going on, the moon's gravity both kept the command module in orbit and the lander and astronauts on its surface. Nothing is too small to have a gravitational pull on another object.
It is important because if there's know land there they might land and a dangerous place.
Viking Lander 1 and Viking Lander 2 Yes, but there are more than that.
Try these:What is the surface temperature of Venus?What corrosive material is a major component of the clouds of Venus?How long was the longest time a lander was able to function on the surface of Venus?What was the first country to land a functioning lander on Venus' surface?Why has Venus traditionally been called Earth's twin?Why is the crust of Venus so thin compared to Earth's crust?Why is the crust of Venus so much younger than Earth's crust?Why does Venus lack moons?Does it rain or snow on the surface of Venus?How long is one Venus year in Venus days?
lunar lander
The answer is in the question.An orbiter orbitsA lander lands.Basically an orbit will orbit the planet/moon while the lander lands on the surface.
there were three astronauts on the Apollo 11 mission, Neil Armstrong and Buzz Aldrin were in the lander and stayed on the Lunar surface while Michael Collins orbited around the moon.
The Soviet Union's "Mars 2" had a "Prop-M"rover on board the lander but the mission failed when the lander impacted into the Martian surface .
A lander?
A "lander"
Mars 2 Lander (USSR)
That all depends on which mission you're referring to. Apollo 11 crew spent about 2 hours on the surface. Apollo 12 and APollo 14 crews spent about 4.5 hours on the surface at a time. Apollo 15, 16 & 17 crews spent about 7.5 hours on the surface at a time.
It proved a soft landing was possible, and that the lunar surface would support the weight of a lander. There was some concern the lunar surface might be of such thick and fluffy dust as to allow a lander to sink into it.
Once all three astronauts were in the command module the lunar module was released to crash in the moon. Once the surface mission was complete there was no longer any use for the lunar lander, it could not survive reentry back on the earth, so instead it was decided they would use it for scientific purposes. Part of the science equiment left on the moon by the astronauts was designed to measure and record "moon-quakes". By crashing the lunar module into the surface of the moon they were able to make valuable discoveries about the composition of the mooni tself.
the difference between a probe and a lander is a lander is a spacecraft that desends and comes to rest on the surface of a planet/space object. while a probe is a device used to collect items and run tests to collect data.
the difference between a probe and a lander is a lander is a spacecraft that desends and comes to rest on the surface of a planet/space object. while a probe is a device used to collect items and run tests to collect data.