A group of scientists discovered a gas called phosphine on Venus (金星). That means there may be living things on the planet. This made many people start to imagine the talk between aliens and humans. Imagining himself as the life on Venus, a reporter from No. 1 Middle School wrote the following letter to people of Earth on the school newspaper.

Many people believe that the Moon was once part of the Earth and broke away millions of years ago. Other people say that it came from another part of space.

There are high mountains, deep valleys and wide flat spaces on the Moon. Animals and plants can’t live on the Moon because it has no air or water. There are no clouds, no rain and no snow, either.

Sound needs air to travel. There is no air on the Moon. So there can be no sound there. The Moon is a silent place.

The Moon has no light of its own. It looks bright because the Sun’s light shines on it. During the day, the rocks become hotter than boiling (沸腾的) water. This is because the Moon is closer to the Sun than the Earth.

The Moon is about 383 thousand kilometres away from the Earth. It takes a spaceship about three days to reach the Moon. But it would take a car nearly six months to travel this way.

Mars is the fourth planet from the sun. Scientists are now watching it. And now three little spacecrafts are studying it. They are taking pictures. 【小题1】 All six are working to find the planet’s past. Did anything ever live on Mars?

No living things can live without water. 【小题2】 On September 29th, scientists had big news. One spacecraft named Phoenix found snow high in the sky on Mars. 【小题3】 And Phoenix also found ice before. 【小题4】 Scientists want to explore more later. In 2009, space scientists planned to send a larger rover called the Mars Science Laboratory.

Someday scientists hope to send a robot to get rocks and return them to Earth. 【小题5】 Can people land on Mars? No one knows. Before people land on it, machines can do the exploring work.