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Κυριακή 22 Σεπτεμβρίου 2013

Ίχνη ζωής από το Διάστημα στην στρατόσφαιρα !

Πηγή MessageToEagle.com
MessageToEagle.com - For the first time, scientists have found life arriving to Earth from space after sending a balloon to the stratosphere.
This discovery could "completely change our view of biology and evolution," according to Professor Milton Wainwright, from the University's Department of Molecular Biology and Biotechnology who led the team of researchers.
"If life does continue to arrive from space then we have to completely change our view of biology and evolution," he said. "New textbooks will have to be written!"


A small organisms that could have come from space after sending a specially designed balloon to 27km into the stratosphere during the recent Perseid meteor shower.

The balloon was launched near Chester and carried microscope studs which were only exposed to the atmosphere when the balloon reached heights of between 22 and 27km. The balloon landed safely and intact near Wakefield.
The scientists then discovered that they had captured a diatom fragment and some unusual biological entities from the stratosphere, all of which are too large to have come from Earth.
"Most people will assume that these biological particles must have just drifted up to the stratosphere from Earth, but it is generally accepted that a particle of the size found cannot be lifted from Earth to heights of, for example, 27km."
"The only known exception is by a violent volcanic eruption, none of which occurred within three years of the sampling trip.

Photo credits: University of Sheffield

"In the absence of a mechanism by which large particles like these can be transported to the stratosphere we can only conclude that the biological entities originated from space. Our conclusion then is that life is continually arriving to Earth from space, life is not restricted to this planet and it almost certainly did not originate here."

Photo credits: University of Sheffield

Professor Wainwright said stringent precautions had been taken against the possibility of contamination during sampling and processing, and said the group was confident that the biological organisms could only have come from the stratosphere.

Alien life in space: Scientists discover extraterrestrial organisms in Earth's atmosphere

"Of course it will be argued that there must be an, as yet, unknown mechanism for transferring large particles from Earth to the high stratosphere, but we stand by our conclusions. The absolutely crucial experiment will come when we do what is called 'isotope fractionation," Professor Wainwright added.
"We will take some of the samples which we have isolated from the stratosphere and introduce them into a complex machine - a button will be pressed. If the ratio of certain isotopes gives one number then our organisms are from Earth, if it gives another, then they are from space. The tension will obviously be almost impossible to live with!"
It is hoped that more new, or unusual, organisms will be found.
Paper.
MessageToEagle.com

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