2 全球首颗！用磁铁清理太空垃圾的飞行器发射升空

Mission to clean up space junk with magnets set for launch
一项用磁铁清理太空垃圾的航天任务即将启动
It's 1_____(visible) in the night sky, but above us there is a cloud of more than 9, 000 tons of space junk — equivalent to the 2_____( weigh) of 720 school buses.
This debris(碎片) is composed of parts of old satellites as well as entire defunct satellites and rocket bodies. The debris poses risks to the International Space Station and threatens things we take for 3_____(grant) on Earth — weather forecasting, GPS and telecommunications.
A demonstration mission to test new technology 4_____(develop) by the company Astroscale to clean up space debris is set to launch in the early hours of Saturday from the Baikonur Cosmodrome in Kazakhstan.
A Soyuz 2 rocket 5_____(launch) a 175-kilogram spacecraft with a satellite attached into space. The spacecraft and the 17-kilogram satellite — the debris to be cleaned up — will separate and then perform a high-stakes game of cat and mouse over the next few months. The tests rely on a magnetic docking plate to latch onto the satellite.
Other space agencies, institutions and companies are also working on technology 6_____( remove) space junk. Clear Space 1, the European Space Agency's mission to remove space junk from orbit, 7_____(expect) to launch in 2025.This mission will use four robotic arms to capture the debris.
"Now is the time to take the threat of debris 8_____(serious) by committing to debris removal programs 9_____ preparing satellites for future removal at their end of life, "said John Auburn, managing director of Astroscale UK."Avoiding catastrophic collisions will help to protect the space ecosystem and ensure all orbits can continue to thrive sustainably 10_____ generations to come."
Keys:
1 invisible  2 weight  3 granted  4 developed  5 will launch
6 to remove  7 is expected  8 seriously  9 and  10 for