The International Space Station(ISS)
The International Space Station (ISS) is a low-Earth-orbiting modular space station (habitable artificial satellite). NASA (United States), Roscosmos (Russia), JAXA (Japan), ESA (Europe), and CSA (Canada) are among the five space agencies involved in the project. Intergovernmental treaties and agreements control the ownership and usage of the space station. The International Space Station is ideal for testing spacecraft systems and equipment for potential long-duration trips to the Moon and Mars. The International Space Station (ISS) is a multi-nation building project that is the largest single structure mankind has ever placed in space. The station's major construction took place between 1998 and 2011, however, it is constantly evolving to incorporate new missions and experiments. Since November 2, 2000, it has been continually inhabited. 244 people from 19 nations have visited the International Space Station as of April 2021.
Activities taking place on ISS onboard are:
Individual experiments are made easier on the ISS by enabling groups of experiments to share launches and crew time. Astrobiology, astronomy, physical sciences, materials science, space weather, meteorology, and human studies, including space medicine and the life sciences, are among the topics investigated. Scientists on Earth have immediate access to the data and can advise the crew on experimental changes. If further experiments are required, the regularly planned launches of resupply vessels make it very simple to launch fresh apparatus. With a crew of six, crews fly trips that last several months and provide around 160 person-hours of labor each week. Station maintenance, on the other hand, consumes a significant amount of staff time.
Based on tests done on the International Space Station, scientists stated in August 2020 that bacteria from Earth, notably Deinococcus radiodurans bacterium, which is extremely resistant to environmental risks, can survive for three years in space. Researchers onboard the ISS and on the ground have studied aerosols, ozone, lighting, and oxides in Earth's atmosphere, as well as the Sun, cosmic rays, cosmic dust, antimatter, and dark matter in the cosmos, for more than 20 years.
The components of ISS are:
Life support, temperature and power control, atmospheric control systems, communications, and computers are among the onboard systems. The space station, including its huge solar arrays, is the size of a football field in the United States, including the end zones, and weighs 925,335 pounds (419,725 kilograms) without visiting spacecraft. The building now offers more living space than a typical 6-bedroom home, as well as two baths, a gym, and a 360-degree bay window. Astronauts have often compared the living quarters of the space station to that of a Boeing 747 jumbo airplane.
How can you observe ISS in the sky?
The Space Station travels at a distance of 248 miles (400 kilometers) above the Earth's surface. It travels around the world every 90 minutes at a speed of roughly 17,500 miles per hour (28,000 kilometers per hour). The station travels roughly the same distance as it would take to travel from Earth to the moon and back in a single day. It can be seen easily by naked eyes in the sky.
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