10a

Recording 10a

Many people believe that one day we will form a colony on another planet. Today we’re going to look at some other planets and consider why it will never be feasible for humans to live on them.

Let’s start with Venous. Now, Venus is unusual because it rotates in a different direction to the other planets orbiting the sun. In terms of its physical features, it’s similar in size to earth.

However, unlike Earth, it doesn’t have any oceans. It’s also extremely hot, thanks to the thick covering of cloud, which keeps the heat at 484 degrees centigrade.

This cloud also reflect sunlight, which is why Venus appears so bright from Earth. A further problem is the continual thunderstorms, which could make life there rather unpleasant.

The surface of Venus also has many craters as a result of asteroid collisions. Next is Mercury, which is a third of the size of our planet. In fact, it’s smaller than all the other planets, except Pluto. Life would be difficult there because it’s close to the sun and has almost no atmosphere.

On Mercury the temperature varies more than on any other planet in the solar system and, as it has no water, it is unable to sustain life.

Let’s consider Saturn next. We know a lot more about Saturn nowadays, thanks to the Voyager space shuttle, which taught us a lot about the rings around Saturn.

We also know that Saturn has a large number of moons. Saturn has barely any solid surface, as its composition is mostly gas. It is also extremely hot, making life for humans impossible.