Four days after blast-off, two of the astronauts landed on the moon. They then explored the surface of the moon. About two days after landing on the moon, they started back to earth. They arrived safely back to earth a few days later.Today we are sending unmanned spacecrafts to other ...
第二段Astronauts would face dangers both getting to and surviving on Mars.What would it take to keep people safe and healthy on a trip to Mars?Although the trip may be many years later,scientists are already working on it.(宇航员在登上火星和在火星上生存都将面临危险。...
In school,Li Jun learned that the first man flew into space in 1961,and later, (6)___ astronauts made it successful to travel into space.Some astronauts even landed on the moon.His teacher always tells him to learn more.He knows not (7)___ can travel into sp...
Some astronauts even landed on the moon. His teacher always encourages him to learn more. He knows not everyone has a chance to travel into space. More importantly, before he can fly to space, he must be trained specially. Li Zixuan knows it's not easy to achieve his dream, but he ...
What astronauts landed on the moon? What does a waning gibbous moon look like? What can you see on the moon from Earth? How was Meteor Crater discovered? What is the mass of the moon? How deep is the Copernicus crater? How are craters formed by asteroids?
Hilary Brueck
Even though spaceships have traveled to the Moon, people cannot visit the Moon without special suits. The Moon has no air or water. Plants and animals can’t live there either. Astronauts first landed on the Moon in 1969. After that, there were six more trips to the Moon. They brought ...
Once safely landed on Mars, astronauts would step out onto a completely alien landscape. They would be the first humans to ever set foot on another planet, a monumental accomplishment. The red desert-like terrain, dust storms, and majestic Martian mountains would be an awe-inspiring sight. Equ...
Members of Shenzhou XIII gave a science lecture(讲座)to millions of students on December 9, 2021 in the Tiangong space station. The three astronauts Zhai Zhigang, Wang Yaping and Ye Guangfu said hello to students, teachers and other viewers(观众)when the lecture started in the afternoon. They...
In school, Li Zixuan learned that the first man flew into space in 1961 and later, more astronauts succeeded in traveling into space. Some astronauts even landed on the moon. His teacher always encourages him to learn more. He knows not everyone has a chance to travel i...