From space the Earth looks so fragile!
Chris Hadfield, better known for making a video of himself signing David Bowie's Space Oddity while on board the International Space Station, has published a book of photographs looking back at the Earth from the "unique and privileged" vantage point of the International Space Station. You can watch a short BBC clip about it: here
The Chang'e 5-T1, Chinese spacecraft has taken a picture of the Earth from the far side of the Moon.
Images like these really show the fragility of our planet and human life. It also shows the need for spreading our species out into the solar system. What do you think people would make of this image, if in 30 years time, they could also see the first Lunar City on the Moon, in contrast to the Earth.
A study by a team of scientists from the University of California, Berkley, demonstrates that a magnetic reversal of the Earth's magnetic field could happen in under 100 years.
This discovery comes as there is an observable acceleration in the decrease of the Earth's magnetic field by up to 10 times, leading some scientist's to predict that a flip is likely in the next few thousand years. The last one was 786,000 years ago.
Although no catastrophic events have been observed from geological evidence of past flips. A flip in the magnetic field could cause mayhem with the world's electricity grids. On top of this, since the Earth's magnetic field protects us from cosmic rays and high energy particles from the sun, there could be an increase in cancers from genetic mutations caused by the weakening of the earths magnetic field. However it should be pointed out there is no threat of this happening in the next 200 years so we will have plenty of time to prepare for when it does happen.
Source (University of California Berkley)
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