Light
How will spectroscopy determine the elements and composition of the atmospheres of exo planets? I ask this question because the light is not of a pure nature, it has been stretched squeezed and affected by other elements on its journey to the telescope that is receiving the photons. This will cause the information that is received to be distorted beyond any hope of a computer algorithm being able to get rid of the noise and giving a clear picture of the situation in the exo planets atmosphere. Sorry to put a damper on things but it will be impossible to find other Earths with this method and with current technology feasibility. Other ways of reading the soup of celestial particles must be approached with a firmer hand on reality, thus more research on the matter must be instigated with a new hope for mankind and its instruments of the senses.
Accelerator
According to physicists there is no danger that the particle accelerator at CERN could create black holes that could destroy the Earth. They say that what goes on in the experiment happens in nature all the time by cosmic rays from the ether. But if it happens in nature why can’t they use nature to get their results and conclusion. Okay they could say that the particle accelerator experiment is under controlled conditions but I am sure the lock of using nature could be opened with some sort of procedural key. It would be a safer option to use nature as a playground for physicists and a hell of a lot cheaper to boot.