1 . Interesting Space Facts

As time goes by, technological advancements have made us learn more facts about space in the past century than in all time before that. We’ve already searched the universe for the most amazing space facts, including facts about the planets in our solar system, moons, the Milky Way and beyond!     1    

The highest mountain discovered is the Olympus Mons, which is located on Mars. It is 16 miles high, making it nearly 3 times higher than Mount Everest.    2     That’s the size of Arizona !

The sun weighs about 330,000 times more than Earth.    3     In fact, the sun is so huge that it contains 99.85% of all mass in our solar system.

Footprints left on the moon won’t disappear as there is no wind. But wait a minute.

    4     Well, it actually wasn’t blowing. That blowing you see is because of a telescopic horizontal rod (望远镜水平杆) that the astronauts were struggling to remove from the flag’s top.

    5     This is due to the lack of gravity in space causing the vertebrae (椎骨) to expand a little. However, this extra height is lost when they re-enter the earth’s atmosphere and are affected by the earth’s gravity again.

China has     1     ( successful) launched its space station— Tianhe. The successful launch marks that China’s space station construction has entered a full stage,     2     lays a solid foundation for the follow-up tasks. The station is expected to contribute to the peaceful     3     (develop) and use of space resources as well as to enrich technologies and experience for China’s future explorations into much     4     (deep) space.

Five launch tasks     5     (finish) last year. China plans another six tasks, including two manned spaceships. The tasks aim to complete     6     construction of the space station in 2022. The station will provide astronauts     7     six zones separately for work, sleep, dining, sanitation, healthcare and exercise. The station also has more     8     (advance) technologies due to the collected wisdom and strengths from universities, research institutes and industrial departments across the country.

So far many foreign space agencies     9     (propose) cooperative intention. China will start the selection of foreign astronauts and carry out joint flights according to the task progress. Through cooperation, China wants     10     (build) its space station into a scientific research platform shared by the world and benefit all humankind.