I recently stumbled across a TED video titled “Questions No One Knows the Answers to”. One of the questions was “Why can’t we see any evidence of alien life ?”. This is a question that appeal to the masses – scientists, conspiracists… everyone has asked themselves if we are alone in this universe.
One beautiful evidence to suggest that humans are infact alone or at most the only intelligible species – is that the universe is 13.7 billion years where as Earth has only being living for 4.5 billion years. So there is a 9 billion gap difference. The Kepler space observatory, a NASA project designed to identify/discover habitable and Earth sized exoplanets with in our galaxy. Having just retired over a year ago, it has been able to observe 530,506 stars and detected 2,662 planets. By extrapolating this data – it is though that there are half a trillion planets – and that there are potentially 50 million life harbouring planets. This begs the question “Why haven’t we seen anything’. If there were other intelligible species born with in that 9 billion gap difference – why have they not been able to progress like us homo sapiens and find interstellar ways of reaching us. Surely with in the millions of years – an intelligent species could be able to travel at the speed of light and reach us.
With in this blog – I will avoid the conspiracy theories and just talk about recent scientific advancement with in answering this question as well as the Kepler space telescope
Advancements in Search for extraterrestrial intelligence (SETI)
A great scientist you all know (as well as a famous car company ) – named Tesla suggested a version of his wireless electrical transmission system could be used to contact beings on Mars. In 1899 – he conducted experiments at his Colorado Springs experimental station. He believed he had detected a signal from that planet since an odd repetitive static signal seemed to cut off when Mars set in the night sky. But on closer inspection of Tesla’s research has ranged from suggestions that Tesla detected nothing, he simply misunderstood the new technology