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On the 2nd April, there was an alarm that “‘a certain object’ falls down, isn’t it” from outer space.
The object that looks red is China’s prototype spacecraft “Tengu-1”.
It re-entered the atmosphere after 09:00, 2nd April,
it is believed that most of the craft have burned up.
Actually under this circumstance,
it was concerned that “would the debris left after burning fall on the ground”.
“Tengu-1” is the prototype spacecraft of the space station launched in 2011 by China.
It is approximately 10m in length, weighing 8.5 tons,
which is about the size of a large bus.
According to experts, the plan of China is first of all to confirm whether people can be sent into “Tengu-1”.
“Tengu-2” is to confirm whether people can stay for a certain period of time.
It is aimed that in around 2022, the independent space station “Tenkyu” will be completed.
While “Tengu-1” succeeded its experiments and completed its roles, it seemed to be out of control since 2016 and descended gradually.
Regarding the worry that the debris of “Tengu-1” may strike people,
a US NGO working on space development predicts that the probability is extremely low that
“it is like winning the lottery with only one millionth of probability”.
Actually thus far, there is no information that any debris fell onto the ground.
In fact now in the universe, these objects are overflowing.
The things look like yellow grains floating around the Earth.
This is the image of things called “space debris”.
“Space debris” are things such as used satellites and the debris of broken rockets,
according to JAXA, Japan Aerospace Exploration Agency,
it is said that, just to mention the relatively large debris of 10cm or above,
there are already around 20,000 pieces.
Because there is a risk that if left unattended, the debris which fly at a speed of 7 – 8km/s may strike meteorological satellites and astronauts having extravehicular activities, therefore measures are urged.
JAXA is experimenting a system to guide things such as the artificial satellites which have become the “space debris” using other artificial satellites to the atmosphere where they would be burned up.
In addition, a private space venture company aims to practicalize the satellites that capture the debris and then fall into the atmosphere and burn up together.
JAXA says that in the first place it is also important to advance the system to prevent “space debris” from occurrence.
Source: News Zeroイチメン (http://www.ntv.co.jp/zero/ichimen/2018/04/post-360.html)
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Date: 2018-04-05 01:01 pm (UTC)