on such a planet.Q: How big is Mars?Mars is about half as big as Earth. But because it doesn't have...?There are no firm plans to send astronauts to Mars. NASA talks vaguely of sending a human crew to the planet some ……

there, then they could live and work on Mars. But it’s a big challenge for astronauts.In 2015, NASA built... the time (一直).NASA plans to (计划) send humans to live on Mars by 2030. ……

there, then they could live and work on Mars. But it’s a big challenge for astronauts. In 2015, NASA built... (一直).NASA plans to (计划) send humans to live on Mars by 2030. ……

in the future,” said NASA scientist Michael Meyer. NASA plans for future research on Mars. The next step..., humans, plants and animals cannot live. The US space agency NASA has been studying Mars (火星) to see ……

)? A UScompany(公司) now has an idea: send people to Mars 20 years from now.The company plans just to send a few people at first. It will take them months to get to Mars.Mars is not an easy place to live ……

;A10China’s big plans     A11China’s big plans     A11US aims...  What’s insideWhat’s insideLearn basic Mars facts  A9Learn basic ……

), it would be a big step for NASA. Without water there can, and never could have been, any life.Water on Mars...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 ……

VCGVCG星舰剑指火星星舰剑指火星Find out how SpaceX plans to get its Starship spacecraft to Mars PAGE 6Find out how SpaceX plans to get its Starship spacecraft to Mars PAGE 6 ……

reason.Curiosity (好奇心) has already taken humans so far. Mars is the next big target. So what...人类太空探索的下一个目标——火星。Billions of dollars have already been spent on planning how to set foot on Mars ……

their god of war. Chinese people called it “the fire star” for the same reason.Mars is the next big target...人类太空探索的焦点所在——火星。Humans have spent billions of dollars on planning how to set foot on Mars. Why do ……

a set of new space plans, setting sights on a space station, Mars and beyond. A space station... achieved by any country. “It’s such a big plan,” said Zhang Rongqiao, chief designer of China’s Mars ……

Berea. It’s as big as a piece of classroom chalk (粉笔). It’s from Mars! NASA’s Perseverance Mars rover.... It’s as big as a piece of classroom chalk (粉笔). It’s from Mars! NASA’s Perseverance Mars rover (探测车) started ……

ever existed on the planet.2030The US plans to send astronauts (航天员) to Mars.2030The US plans...) to explore Mars. Many countries, including the US, Russia, Japan, India and some European (欧洲的) countries ……

on the planet.2030The US plans to send astronauts (航天员) to Mars.2030The US plans to send astronauts (航天... (竞争) to explore Mars. Many countries, including the US, Russia, Japan, India and some European (欧洲 ……

. To celebrate the first big success for the country’s space development, April 24 is now China’s Space Day, which started this year. While celebrating, China also announced new exploration plans to make a space ……