
So far 244 individuals from 19 countries have visited the station, and among them eight private citizens who spent up to $50 million for their visit. The US space agency, NASA, spends about $3 billion (£2.4 billion) a year on the space station program, with the remaining funding coming from international partners, including Europe, Russia and Japan. ISS studies have investigated human research, space medicine, life sciences, physical sciences, astronomy and meteorology. Research conducted aboard the ISS often requires one or more of the unusual conditions present in low Earth orbit, such as low-gravity or oxygen. The International Space Station has been continuously occupied for more than 20 years and has been expended with multiple new modules added and upgrades to systems More of his images can be seen on his Instagram account here.


Voltmer used a Celestron 11-inch EdgeHD telescope on a GM2000 HPS mount and an ASI290 planetary camera to get the shot. Voltmer initially only spotted Maurer in his photo but after taking a bit more time to analyse it, with the help of another well-known photographer Phillip Smith, he saw that Chari was visible too, perched on the Canadarm 2. Vandebergh was on the Canadarm 2 robotic arm in that image. 'It's probably the first ground-based picture showing two spacewalkers on the ISS at the same time.'Īlthough Voltmer's image is believed to be the first ground-based picture of two ISS astronauts spacewalking, in 2011 amateur photographer Ralph Vandebergh did also capture images of American astronaut Steve Bowen during a spacewalk.

'I feel like I just made a once in a lifetime image. 'This image of the ISS pass was taken on 23 March 2022, under good seeing conditions through my C11 EdgeHD telescope from the hometown of ESA astronaut Dr Matthias Maurer,' Voltmer told. Although Voltmer's image is believed to be the first ground-based picture of two ISS astronauts spacewalking, in 2011 amateur photographer Ralph Vandebergh did also capture images of American astronaut Steve Bowen during a spacewalk (pictured)
