When was the first component of ISS launched into orbit? – November 20, 1998 (Zarya)

What is the average altitude at which ISS orbits the Earth? – 248 miles above Earth

How many orbits per day does the ISS complete? – 15.54

Name the participating space agencies in the ISS program. –  NASA, Roscosmos, JAXA, ESA CSA.

What is the total number of computers that control the systems on ISS? – 52


According to the original Memorandum of Understanding between NASA and Rosaviakosmos, the International Space Station was intended to be a laboratory, observatory, and factory in low Earth orbit. It was also planned to provide transportation, maintenance, and act as a staging base for possible future missions to the Moon, Mars, and asteroids. In the 2010 United States National Space Policy, the ISS was given additional roles of serving commercial, diplomatic and educational purposes.

The ISS has been continuously occupied since the arrival of Expedition 1 on 2 November 2000. This is the longest continuous human presence in low Earth orbit, having surpassed the previous record of 9 years and 357 days held by Mir.

ISS can be observed from Earth with naked eyes.

The ISS has 32,333 cubic feet of pressurized volume and weighs 930,000 pounds.

The Olympic torch has even made its way to the Space Station and went outside into space on a spacewalk.

Main U.S. control computers have 1.5 gigabytes of total main hard drive storage in U.S. segment compared to modern PCs, which have ~500 gigabyte hard drives.