Satellites and a Rover

International Space Station

  • Orbit Height: 418 km
  • Speed on Orbit: 7.66 km/s
  • Length: 72.8 m (239 ft)
  • Width: 108.5m (356 ft)
  • Weight: 420,000 kg (320 Cars!!)

Did You Know: The International Space Station (ISS) took 10 years and more than 30 missions to assemble!

The International Space Station (ISS) was launched back in 1998 and completed in 2011, and is a fundamental lab to test out experiments and research that will benefit us and our next space expeditions.

Cross Section of the ISS

Six people from across the globe live and work onboard and travel at speeds of 5 miles per second! It circles the globe every 90 minutes! And, in 24 hours, the space station makes 16 orbits of Earth; so, they travel through 16 sunrises and sunsets! 230 individuals from 18 countries have worked and lived on board the ISS. Mainly: from the United States (145 people) and from Russia (46 people). There have been 2015 spacewalks since December 1998!

There are two bathrooms, a gym, 6 sleeping quarters and a 360-degree bay window. Six spaceships can dock to the ISS at any one time. Astronauts usually stay in the ISS for 6 months, but this astronaut, Peggy Winston, set the record for spending the most total length of time in the ISS at 665 days on 2 September 2017.


  • Orbit Height: 435 km
  • Mission Status: Complete
  • Speed on Orbit: 7.77 km/s
  • Length: 25.1 m (82.4 ft)
  • Width 17 m (55.8 ft)
  • Height 11.1 m (36.3 ft)
  • 77,000 kg

Did you Know: It was the site of over 300 experiments!

Skylab was the first space station operated by the United States. It was launched on May 14, 1973. During its time in orbit, three teams of three men lived and worked on board the station for 28, 56 and 84 days. The crew on board the station conducted over 300 experiments in biomedical and life sciences, solar astronomy, Earth observations and material processing. It spent six years orbiting the Earth until its decaying orbit caused it to re-enter the atmosphere. It scattered debris across the Indian Ocean and some debris in areas of Western Australia when it came back down to Earth on July 11 1979.

The station had a sleeping compartment, wardroom and waste compartment. The body of the station had a micro meteoroid shield. Attached on the outside where solar panels and the Appollo Telescope Mount. There was also an Airlock Module and a multiple docking adapter to attach the command and service module.

The Mars Rover Opportunity

  • Life span: 14 years
  • Images taken 217,594
  • Miles travelled on Mars: 28
  • Steepest slope driven: 32°
  • Time on Mars: 2434 days

The mars rover was launched on the 26th of November 2011 and landed on mars on the 6th of august 2012. This took 243 days. The purpose of the rover was to see if there was any life or water, check and study the martian rocks, take pictures of mars and to check if it is habitable.

Voyager 1

  • Active: Yes
  • Cost: $250 million
  • Distance Travelled: 21.2 billion km (2018)
  • Time in Space: 42 years (Sep 1st 2019)

Voyager 1 was launched in 1977 and is currently 36 years old and is currently 12 billion miles from our sun. In 2013 voyager made it out of our solar system making it the first ever man-made object to make it out of our solar system. It has also been predicted that it and its twin probe will continue through empty space and possibly outlive our sun.

Post Author: Han Yeo