The International Space Station (ISS) is a marvelous example of global collaboration and cooperation. A unique merging of two space agencies, five countries, and numerous international teams who use their collective intelligence to achieve a common goal.
People around the world work together with one voice to make the ISS a reality – a shining beacon of technological advancement and the scientific discovery that orbits our planet 21 times in just 24 hours.
This multi-national effort resulted in one of the most complex engineering marvels in history: rising 350 kilometers above the Earth’s surface, this modular space station can be seen from Earth as an everlasting reminder of humanity’s potential for greatness when we come together for collective progress.
Inside the station, research protocols from every participating nation are used to generate groundbreaking results and further advances in science and technology. With access to outer space as an open laboratory, new discoveries are made every day that expand our knowledge of the universe by leaps and bounds.
Innovation, exploration, and achievement all play an integral role within the walls of this incredible structure – pushing mankind even closer to achieving its full potential on its journey into outer space.
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International Space Station Facts for Kids
- The ISS orbits Earth at the height of about 250 miles.
- It weighs about 925 tons, the size of a football field.
- It has been continuously occupied since 2000.
- It has a crew of 6 people from different countries.
- It orbits Earth about every 90 minutes.
- It is a research laboratory for studying Earth, space, and life in space.
The Establishment of the International Space Station

What was Space Station Alpha?
Space Station Alpha was a proposed international space station that intended to combine the separate projects of each participating nation – the United States (NASA) Space Station Freedom, Russia’s Mir-2, and the European Space Agency’s Columbus.
The announcement of this project came in 1993 as an alternative to the Cold War rivalry between the Soviet Union and the United States.
Why was it created?
Space Station Alpha sought to establish a new sense of cooperation between participating nations in terms of space exploration. This ambitious initiative was made possible by declining tensions in the wake of the end of the Cold War, combined with NASA’s cancellation of its own pre-existing plans for Space Station Freedom.
Together, international partners hoped to advance their respective technological capabilities while also fostering peaceful relations among world powers.
What components make up the station?
Space Station Alpha consists of three core components: NASA’s planned Space Station Freedom, Russia’s proposed Mir-2 (the evolving form of what is now Zvezda), and ESA’s independent Columbus module.
All three parts could potentially form an interconnected complex upon completion of construction and assembly in outer space.
What are its goals?
The primary purpose of this collaborative effort is to provide scientific research for its various participating members, allowing each country to benefit from shared resources and pooling knowledge together into a single cohesive unit.
It is expected that such a partnership will advance progress in topics such as astronomy, astrophysics, and engineering – potentially even propelling humanity closer toward true interplanetary exploration.
The Building of the International Space Station

What is the ISS?
The International Space Station (ISS) is a habitat in microgravity located in low Earth orbit. It’s humanity’s largest space station and serves as a multi-purpose laboratory for scientific research, education, and commercial applications such as satellite communications.
What Components make up the ISS?
The components of the ISS are made up of stainless steel, titanium, aluminum, and copper, produced at various factories around the world. These parts were then sent to the Space Station Processing Facility located at Kennedy Space Center for final assembly, machining, and launch preparations.
Which activities happen on the ISS?
A range of activities takes place onboard the ISS, which includes things like scientific experiments, communication tests, and numerous assembly missions.
Astronauts spend time performing maintenance on the station as well as conducting daily exercises to help combat bone density loss while they’re living in zero gravity.
How is technology used on the ISS?
Technology is used on board the ISS to monitor environmental conditions such as humidity, temperature, and radiation levels that astronauts would otherwise be exposed to when venturing out into space.
Sophisticated systems also help researchers study everything from plant growth in a vacuum environment to fluid motion and crystal formation with minimal interference from gravity.
The Construction of the International Space Station
The International Space Station is an iconic example of international cooperation in space architecture. This one-of-a-kind project began with the launch of the Zarya Functional Cargo Block by Russia on a Proton rocket.
Next, the Unity Module and Zvezda service module were added to the International Space Station for extra functionality.
In order to make sure that everything was perfect before launch, engineers at the Space Station Processing Facility did extensive tests on all additional modules launched by the Space Shuttle.
On 1 November 2000, Expedition 1 entered orbit around the ISS; this team consisted of William Shepherd (U.S.), Yuri Gidzenko (Russia), and Sergey Krikalev (Russia).
Since its first mission, 159 components of the International Space Station have been assembled over more than 1,000 hours of work in space by astronauts.
This collective effort has enabled scientists and researchers to conduct various experiments in low-Earth orbit—all toward understanding more about space and our universe!
Living on The International Space Station

What is Bedtime in Space Like?
Bedtime in space is just like it is on the planet’s surface, with a 24-hour schedule or circadian rhythm. The only difference is that onboard the International Space Station (ISS), the Sun rises and sets 16 times a day. And astronauts have to find ways to adjust their body clocks accordingly.
At bedtime, they must rely on sleeping bags attached to walls, as sleeping without gravity means inevitably you float away if you don’t affix yourself properly. Once inside, astronauts straps themselves securely within the confines of the bag so they can get a good night’s sleep.
These sleeping bags come with bars that attach overheads for crewmembers to hang from, providing support and comfort as they sleep in zero gravity situations.
Going to bed also involves getting ready for the next day’s mission: checking equipment settings and going over communication plans with other crew members and flight controllers back home on Earth.
Aside from catching some shut-eye and planning for tasks ahead, there are other perks that come along with being an astronaut–like taking time to appreciate the serenity of outer space as you gaze at stars through large ISS windows or maybe capturing breathtaking images of cloud formations down below!
What is Zero Gravity Like?
Zero gravity is a term used to describe an environment where there is no G-Force or simulated weightlessness. This phenomenon can be experienced in different ways: training with water, going in a plane and falling to Earth quickly, or being in orbit.
In zero gravity environments, the body must adapt due to the lack of gravitational forces. Astronauts need to exercise regularly to prevent “chicken-leg syndrome” caused by weak legs and large upper bodies from not having to use their legs within an atmosphere less than Earth’s gravity.
Eating in space presents a different challenge since liquids and crumbs can ruin equipment, so astronauts eat dried food out of pouches when unable to take advantage of fresh fruits and vegetables sent up from Earth.
What is The Bathroom Like in Space?
In space, the usual bathroom has been replaced by the term “restroom.” Astronauts take quick showers with squirt guns instead of full baths and use water vacuums to catch all the drifting droplets.
For more convenience, astronauts often opt for a speedy “sponge bath” using wet clothes.
Toilets are also completely different—since there’s no gravity, toilets must actually be attached to the astronauts and use suction to remove waste. With today’s innovative plumbing solutions, astronauts can maintain personal hygiene while living and working in space.
Important Facts and Overview
The ISS has been continuously occupied since 2000, making it the longest-occupied object in space.
Many astronauts and cosmonauts have spent time living and working on the ISS, including Peggy Whitson, who has spent more time in space than any other American astronaut. She spent a total of 665 days, 10 hours, and 21 minutes in space over the course of three missions.
The ISS is a science laboratory that orbits Earth at the height of about 250 miles. It is a unique platform for conducting scientific experiments in microgravity.
The ISS is a collaborative project between several space agencies, including NASA, the Russian Federal Space Agency, the Japanese Aerospace Exploration Agency, the Canadian Space Agency, and the European Space Agency.
The ISS has played a crucial role in advancing our understanding of space, Earth, and life in space. It has also contributed to technological advances and the development of new materials and medicines.
