00:00International Space Station is a platform in space where astronauts land, stay here and do big science experiments, but the life here is completely different from that of the earth.
00:16You may be surprised to know that there are 16 sunrises and sunsets in 24 hours at the International Space Station.
00:24We will tell you why this happens in the video.
00:28Sunita Williams, an Indian astronaut, has been stuck in this International Space Station for 9 months and is waiting to return to earth.
00:36The good news is that she is about to return to earth soon.
00:40So how is this International Space Station, what is its size and what are the full details, let's know in this video.
00:47So if you think that the International Space Station is a stationary structure like New Delhi Railway Station or Delhi Airport, then you are wrong.
00:56Actually, the International Space Station is not a constant structure, but it is a spacecraft that rotates continuously.
01:04The International Space Station continues to orbit the earth.
01:07If we talk about its height, then the International Space Station is at an altitude of 403 km from the earth and it continues to orbit the earth.
01:16During this time, astronauts are present in it, that is, Sunita Williams has been orbiting the earth continuously for the past 9 months.
01:23If we talk about its speed, then its speed is the most surprising thing.
01:28The International Space Station orbits the earth at a speed of 17,500 miles per hour.
01:35If we say in kilometers, it means that the International Space Station orbits the earth at a speed of 28,163 km per hour.
01:46If we talk about the size, then according to NASA, the size of the International Space Station is as much as a 5-bedroom house or two Boeing 747 jetliners.
01:55A team of 6 people and some guests can stay here.
01:58If we talk about the current situation, then 8 people are present in the space station at this time.
02:02The weight of the space station on earth is 10 lakh pounds, that is, 4,53,592.37 kg.
02:11If all its parts are combined and its size is measured, then its length will be equal to a football field.
02:18The space station includes the experimental module of America, Russia, Japan and Europe.
02:24We were talking that it has 16 sunrises and 16 sunsets.
02:29Let's know why this happens once.
02:31In the International Space Station, you get the experience of seeing 16 sunrises and 16 sunsets in 24 hours.
02:37You can say it in this way that there is a day of 90 minutes here and a night of 90 minutes.
02:43And this happens 16 times in 24 hours.
02:46This happens because the size of the earth is due to the very fast pace of the International Space Station.
02:52The International Space Station orbits the earth at a speed of about 28,000 km per hour.
02:58It takes 90 minutes in this, that is, it took 90 minutes to orbit one.
03:03This means that in 24 hours, 16 circles are placed all around the earth.
03:08Because the International Space Station completes a cycle every 90 minutes,
03:12it means that during each cycle, this space station stays for about 45 minutes day and 45 minutes night.
03:18That is why in every cycle, the International Space Station once sunrises when it enters from night to day,
03:24and once sunsets when it enters from day to night.
03:29Because the ISS orbits 16 times in 24 hours, that is why it sees 16 sunrises and 16 sunsets.
03:36The size of the earth, which is 12,742 km in diameter and the height of the room of the space station is 400 km,
03:44decides how fast the ISS can rotate around the earth.
03:49If the earth is very big, then it takes more time to complete one cycle and the number of sunrises and sunsets can be reduced by 16.
03:58The balance of the earth's shape and the room of the ISS is such that the ISS crosses the day and night parts of the earth every 90 minutes,
04:06which makes it a unique experience.
04:09Now, how old is this International Space Station?
04:14Its first part was launched in November 1998.
04:18A Russian rocket launched the Russian Zarya control module.
04:23After 1.2 weeks, the space shuttle Endeavour and Zarya met.
04:27The space shuttle was taking the US Unity Node.
04:30The crew members connected the Unity Node to Zarya.
04:33In the next two years, more parts were added to the space station until it was ready to stay.
04:39The first group of drivers to the International Space Station arrived on November 2, 2000.
04:46Since then, people have been staying at the space station.
04:50NASA and many partners around the world completed the construction of the space station in 2011.
04:59Meanwhile, there is good news about Sunita Williams.
05:02NASA has confirmed the date of her return.
05:05In a statement on Sunday evening, it was said that space travelers are expected to land on the Florida coast.
05:12According to the time of India, Wednesday was extended to 3.27 am.
05:19Sunita Williams and Butch Wilmore have been stuck at the International Space Station since June.
05:27She had some technical problems with the Boeing airliner.
05:32After that, she could not return to Earth and stayed there for nine months.
05:37So that's all in this video.
05:38In this video, you learned how the International Space Station is.
05:42How big it is and how fast it rotates.
05:45How did you like this information?
05:47Comment and tell.
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05:57NASA Jet Propulsion Laboratory, California Institute of Technology
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