Scientists using the Hubble Space Telescope have carried out the first spectroscopic survey of Earth-sized planets in TRAPPIST-1's habitable zone and
the results are encouraging , the results show that at least five of the planets don't seem to contain puffy, hydrogen-rich atmospheres meaning they
aren't likely to be gas planets but more likely rocky planets capable of sustaining liquid water at their surface and an atmosphere.
TRAPPIST-1 is a prime target for James Webb when it launches next year , more and better data will be available soon.
At only 40 light-years away if they're coming that could be where they're coming from.
edit on 9-2-2018 by gortex because: (no reason given)
I think NASA is wasting time and money on this right now.. then should save it for later.
For now they should put money and tech into Mars and get a working partnership going with Elon.
Lets get some people up there and start building.
Despite the pun, I hope space faring civs are benevolent... despite the nuke evidence on Mars and the horrid seeming silence of the cosmos... despite
evidence of ourselves and surrounding life-forms engaged in kill or be killed conflicts, I really hope there is some ultimate benevolent logic
permeating the cosmos... or we be in deep trouble (maybe again).
Proving that life exists on other exoplanets is cheap publicity to get the public behind this. So, I wouldn't call this a waste of money. Rather,
this is part of the process. Locate other exoplanets we want to go to. Simultaneously, work on how humans can be sustained off world on a Mars.
But, the truth is, we are likely 200 - 400 years away from trying our first interstellar mission at best.
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