Sunday, 17 February 2019

Trash Bag in Space

Astronomers who have the job of detecting natural objects which come close enough to the earth possibly to collide with it usually detect asteroids and comets, but they have been baffled recently by something that they have given the catchy little name A10bMLz. What makes A10bMLz unusual is that it is moving very near to the earth indeed, in fact within the orbit of the moon. Its own orbit is highly elliptical and its perigee, it closest point of approach to the earth is just 372 miles. It could be natural, which would make it earth's second natural satellite, but its consistency makes this unlikely. It has a high area-to-mass ratio which means that it is very tenuous like a rubbish bag, which is why it has been nicknamed the "trash bag in space". It is about ten feet across. It is probably part of an old spacecraft or satellite. This has reignited the debate about "space junk". The earth is surrounded by a cloud of fragments that are the debris of space exploration. Some are large, such as rocket stages or broken satellites, but some are tiny and undetectable like nuts or bolts. Some of this junk is in stable orbit and will remain circling the earth for a long time, possible for centuries, until the miniscule drag of the exosphere finally brings them down. Space junk is a major hazard for spacecraft. In fact the Space Shuttle's window was once cracked when it was struck by a tiny fleck of paint. At astronomical speeds of many miles per second, the fleck had the kinetic energy of a rifle bullet. Some people are even suggesting that space missions will have to be suspended until a solution to space junk is found. Source: https://www.mirror.co.uk/science/mysterious-empty-trash-bag-object-13926868. Regular readers will probably guess what I'm going to suggest now; could the "trash bag in space" be artificial but not man-made? In other words, is it an artefact of an extraterrestrial intelligence? This is certainly possible and it is probably more likely seeing as we have been visited already recently by 'Oumuamua which I am sure is some kind of interstellar spacecraft, see: https://hpanwo-tv.blogspot.com/2018/07/oumuamua-livestream.html. Prof. Avi Loeb has recently restated his courageous position that 'Oumuamua is artificial, see: http://www.spiegel.de/international/zeitgeist/astronomer-avi-loeb-on-the-interstellar-body-oumuamua-a-1246803.html. We also have the strange case of the "black knight", see: https://hpanwo-voice.blogspot.com/2016/02/ben-emlyn-jones-on-kev-baker-show-6.html. If anything happens that reveals that any of these objects are truly made by aliens then it will be impossible for the authorities to cover it up, as I explain in the background links below. There can be no cover-ups in astronomy.

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