Many arguments have been made for and against space colonization. The two most common in favor of colonization are survival of human civilization and the biosphere in the event of a planetary-scale disaster (natural or man-made), and the availability of additional resources in space that could enable expansion of human society. The most common objections to colonization include concerns that the commodification of the cosmos may be likely to enhance the interests of the already powerful, including major economic and military institutions, and to exacerbate pre-existing detrimental processes such as wars, economic inequality, and environmental degradation.
No space colonies have been built so far. Currently, the building of a space colony would present a set of huge technological and economic challenges. Space settlements would have to provide for nearly all (or all) the material needs of hundreds or thousands of humans, in an environment out in space that is very hostile to human life. They would involve technologies, such as controlled ecological life support systems, that have yet to be developed in any meaningful way.
There are yet no plans for building space colonies by any large-scale organization, either government or private. However, many proposals, speculations, and designs for space settlements have been made through the years, and a considerable number of space colonization advocates and groups are active. Several famous scientists, such as Freeman Dyson, have come out in favor of space settlement.
Stephen Hawking warns humanity has just 200 years to escape Earth and says Donald Trump has taken ‘the most serious, and wrong, decision on climate change this world has seen’
Humans must find a new home in space in the next 200 to 500 years if we are to survive, Professor Stephen Hawking has warned.
The physicist repeated his warning that the human race is doomed at the Starmus Festival celebrating science and the arts, which is being held in Trondheim, Norway.
He also slammed US President Donald Trump, saying ‘I am not denying the importance of fighting climate change and global warming, unlike Donald Trump, who may just have taken the most serious, and wrong, decision on climate change this world has seen,’ he said.
‘Spreading out into space will completely change the future of humanity,’ Stephen Hawking said.
‘I hope it would unite competitive nations in a single goal, to face the common challenge for us all.
‘A new and ambitious space programme would excite (young people), and stimulate interest in other areas, such as astrophysics and cosmology’.
He revealed his hope nuclear fusion-powered ships propelled by light or another energy form will guide us to our new home.
‘The Earth is under threat from so many areas that it is difficult for me to be positive,’ he admitted.
Global warming, also referred to as climate change, is the observed century-scale rise in the average temperature of the Earth’s climate system and its related effects.
The Global warming is the Biggest issue to leave the earth. Global warming, also referred to as climate change, is the observed century-scale rise in the average temperature of the Earth’s climate system and its related effects. Multiple lines of scientific evidence show that the climate system is warming. Many of the observed changes since the 1950s are unprecedented in the instrumental temperature record which extends back to the mid-19th century, and in paleoclimate proxy records covering thousands of years.
Stephen Hawking warns artificial intelligence could end mankind. His warning came in response to a question about a revamp of the technology he uses to communicate, which involves a basic form of AI.
But others are less gloomy about AI’s prospects.
The theoretical physicist, who has the motor neurone disease amyotrophic lateral sclerosis (ALS), is using a new system developed by Intel to speak.
Machine learning experts from the British company Swiftkey were also involved in its creation. Their technology, already employed as a smartphone keyboard app, learns how the professor thinks and suggests the words he might want to use next.
Prof Hawking says the primitive forms of artificial intelligence developed so far have already proved very useful, but he fears the consequences of creating something that can match or surpass humans.
artificial intelligence – weak AI, Strong AI and Singularity AI
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