![The uncrewed Orbital ATK Cygnus cargo ship S.S. J.R. Thompson is captured by a robotic arm at the International Space Station on May 24, 2018. The Cygnus delivered more than 3 tons of supplies to the station\'s Expedition 55 crew. (Photo/NASA)](http://www.ecns.cn/hd/2018/05/25/96b79e5e25bf41da8d703e3c49729c06.jpg)
The uncrewed Orbital ATK Cygnus cargo ship S.S. J.R. Thompson is captured by a robotic arm at the International Space Station on May 24, 2018. The Cygnus delivered more than 3 tons of supplies to the station's Expedition 55 crew. (Photo/NASA)
![An Orbital ATK Cygnus cargo ship arrives at the International Space Station on May 24, 2018 to deliver more than 3 tons of science gear and supplies. (Photo/NASA)](http://www.ecns.cn/hd/2018/05/25/b18106f7a2204cc280848067f68992a8.jpg)
An Orbital ATK Cygnus cargo ship arrives at the International Space Station on May 24, 2018 to deliver more than 3 tons of science gear and supplies. (Photo/NASA)
![The uncrewed Orbital ATK Cygnus cargo ship S.S. J.R. Thompson is captured by a robotic arm at the International Space Station on May 24, 2018. The Cygnus delivered more than 3 tons of supplies to the station\'s Expedition 55 crew. (Photo/NASA)](http://www.ecns.cn/hd/2018/05/25/9a14d0e15c024c028a5021f028321db2.jpg)
The uncrewed Orbital ATK Cygnus cargo ship S.S. J.R. Thompson is captured by a robotic arm at the International Space Station on May 24, 2018. The Cygnus delivered more than 3 tons of supplies to the station's Expedition 55 crew. (Photo/NASA)