The larger and heavier something is, the harder it is to get into space. The more weight you put into a spacecraft, the more fuel you need. And on top of that, you need additional fuel to get that fuel into space, so the need for fuel increases exponentially with the weight of the spacecraft.
Some space probes have small robots called "rovers" that are designed to explore the surface of planets or moons. These rovers are equipped with various instruments and cameras to collect data and images.
Rovers are a type of space probe. Space probes are any robotic mechanism sent out of Earth's atmosphere to explore and gather information.
Rovers and satellites.
Yes... Are you really that thick...
Rovers on celestial bodies like Mars are subject to gravity, which keeps them grounded. Without gravity, they would indeed float in space. However, the gravitational pull of these bodies keeps the rovers anchored to the surface and prevents them from floating away.
A rover is a piece of machinery, you don't teach it.
See the Web Link 'Rover - Space Exploration - Wikipedia' to the left for information.
Rovers
· Rovers (US exploration of Mars)
· rockets · Rovers (US exploration of Mars)
The Mars rovers were launched into space aboard rockets, which carried them out of Earth's atmosphere and into space. The rockets provided the necessary thrust to propel the rovers towards Mars, where they eventually landed on the surface using a variety of landing methods such as parachutes, airbags, and in some cases, sky cranes for precision landing.
They have the robotic rovers on Mars like Sojourner, Spirit, and Opportunity!!