time humans walked on the moon. Now the Americans want to be the first to visit Mars.US President Barack Obama opened his Mars plan (计划) on Oct 11. The country will send (发射) people to Mars by 2030 ……

Is there water or life on Mars? How can we find out? We have to pay a visit to Mars. For the past 50 years, that is what scientists have been trying to do. Humans can’t go to Mars right now ……

it. Ninety-five percent of its atmosphere is carbon dioxide (二氧化碳). *If we visit Mars, we will have...探秘火星——地球的神秘邻居。IF you weigh 50 kg on Earth, you will only weigh 22 kg on Mars. This is only one ……

(大气层). But 95 percent of the atmosphere is carbon dioxide (二氧化碳). If we visit Mars, we have to wear...让我们一起探寻神奇的火星吧！The sky is pink. The year is longer. These are some interesting things about Mars (火星 ……

is －62 C. When the sun goes down, it can be as low as －176 C. So if you want to visit Mars, don&rsquo... want to visit Mars, don’t forget to bring your spacesuit (宇航服). It can keep you warm. 3 ……

be as low as －176 C. So if you want to visit Mars, don’t forget to bring your spacesuit (宇航..., it can be as low as －176 C. So if you want to visit Mars, don’t forget to bring your ……

地球机器人勇探火星，充当地质学家寻找水源。THE first scientists to visit Mars are not going to be flesh and blood humans... will be rolling around the Red Planet sometime in January 2004.NASA first sent a rover to Mars in 1997 ……

does the ISS have?A. It is the only satellite that can visit Mars. B. There is almost no weight ……

studies to make this happen. Last year, to study the effects (影响) of a human visit to Mars, six...车) or probe (探测仪) on Mars!China, Finland, the United Arab Emirates, the European Space Agency (ESA ……

. They are doing many studies to make this happen. Last year, to see the effects of a human visit to Mars...我们正在用智慧攻克星际旅行的种种难题，奔向火星。It seems everyone is trying to explore Mars these days. China, Finland ……

of a human visit to Mars, six scientists lived inside a dome (半球形物) for one year. Private... many studies to make this happen. Last year, to see the effects of a human visit to Mars, six ……

. It will take seven months to reach the planet and land.After this mission, China plans to visit Mars... this mission, China plans to visit Mars again in 2028, aiming to collect soil from the surface of the planet ……

. It will take seven months to reach the planet and land.After this mission, China plans to visit Mars..., China plans to visit Mars again in 2028, aiming to collect soil from the surface of the planet ……

guy “Shorty” in Australia.D. Murray calls his friend Alex “Al” sometimes.Day 4Chinese probe to visit Mars (P6)Choose the answer:1. According to the passage, which one is NOT true about a probe ……

IF a visit to the red planet is on your to-do list, now you can plan a road trip on Mars. Google's latestmapping tool(地图工具), "Google Mars", will take you everywhere on the red planetThe new service ……