The International Space Station (ISS) is thebiggest object 1 (make) by man nowadays inlow Earth orbit(轨道). It travels around the Earth16 times per day 2 a speed of 27, 700 km/h. Atnight it can 3 (easy) be seen from Earth, as it4 (fly) 320 kilometres above us. Altogether 16...
根据第四段中的 In low orbit,space debris circles around Earth at speeds between 7 to 8 kilometers per second. Because of the high speed,it can penetrate(穿透)the surface of the ISS.(在低轨道上,空间碎片以每秒7到8公里的速度围绕地球旋转。由于...
“Because it's at worst case a plane crashing, part of which is in a populated area.” So how can the space station make a safe return? Despite certain risks, NASA is considering a scheduled de-orbit—maneuvering the station to a special angel in its orbit, making the return more ...
The May 31 arrival of NASA astronauts Robert Behnken and Douglas Hurley on SpaceX's Crew Dragon was particularly exciting. The Crew Dragon spacecraft, which ferried the NASA astronauts to the IS, lifted off on the Falcon 9 rocket from NASA's Kennedy Space Center in Florida on May 30. ...
This is exactly what NASA is doing now. The US space agency has been trying to find the hole,which is equivalent to "finding pinholes in a large airliner",Xinhua News Agency noted.(1)What can we know about ...
Today NASA's top concern is the growing threat from space junk. This year, the space station has had to avoid objects three times. NASA and its partners say the space station easily has several years of usefulness left. Russia's Mir station operated for 15 years in the late 1980s and ...
It isn't bright enough to be seen in the middle of the day and the best time to view the ISS is either at dawn or dusk. Viewing opportunities of the ISS can vary between one sighting a month to several a week, depending on your location and the orbit of the ISS. Live Video from...
Inflatable space modules are not a new concept, NASA have been exploring the possibility since the 1960’s. The Chinese Space Agency is now getting in on the act and is testing its new inflatable module which is part of its Shijian-19 satellite launch. To get it into orbit the capsule wa...
WASHINGTON, Feb. 2 (Xinhua) -- NASA plans to retire the International Space Station (ISS) at the end of 2030, after which the ISS is expected to make a splash as it comes back to Earth, according to newly published plans. In its ISS Transition Report, NASA said that after the extensi...
The International Space Station is aiding in the research of water purification technology. In the space station, scientists are able to conduct advanced experiments which are not possible on the Earth. In space, the external variables are significantly less compared to the Earth. Fewer constraints ...