What Is Space Junk1?什么是太空垃圾钥

There’s space junk orbiting2 Earth， and it’s getting more and more everyyear. Space junk is the name that scientists give to the thousands of pieces ofbroken satellites3 and spacecraft4. It takes up the Earth’s orbit. Space junkcan be as small as a piece of paint or as large as a broken rocket5. No matterthe size， it is a great danger to the astronauts6 and spacecraft that work inEarth’s orbit.

太空垃圾在围绕地球飞行，而且每年都在增加。（剩余3828字）