Rovers and Landers

Getting into space is one thing, but humans have long desired to find alternative places to live.

Before we can live on another planet, we have to find out whether it is habitable.

  • Does it have the right air pressure?
  • Is the atmosphere breathable?
  • Is the gravity correct?
  • Is there life?


We can find out a lot of this information from space, but some things cannot be seen from space, such as finding life or analysing the soil for minerals.

So we need to land a probe or laboratory on the planet surface.

A lander is a remote controlled robot that lands on a planet's or moon's surface and take photographs and measurements.

A rover is a lander that can move around.

They perform experiments such as

  • analysing the atmosphere
  • taking soil samples
  • drill rocks
  • search for water
  • search for signs of life

VENUS

Photograph from the surface of Venus taken by the short-lived Venera 13 lander sent by the Soviet Union in 1981. Landers to Venus do not generally survive longer than 2 hours because of the 457 C (855 F) temperatures.


 

WHAT SIZE ARE THE ROVERS?

They varied from the tiny Sojourner (on Mars) to the gigantic Curiosity (also on Mars)!