Romfart og astronomi - diskusjon, nyheter og annet som opptar deg

[Enceladus]

2 hours ago, Dragavon said:

https://www.vg.no/nyheter/i/1Mb1oX/forskere-fant-mulige-tegn-paa-liv-paa-fremmed-planet

Ja, veldig gøy dette!

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"This is the strongest evidence yet there is possibly life out there. I can realistically say that we can confirm this signal within one to two years."

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at this stage, as Prof Madhusudhan's team freely admits.

Firstly, this latest detection is not at the standard required to claim a discovery.

For that, the researchers need to be about 99.99999% sure that their results are correct and not a fluke reading. In scientific jargon that is a five sigma result.

These latest results are only three sigma, 99.7%. Which sounds a lot, but it is not enough to convince the scientific community. But it is much more than the one sigma result of 68% the team obtained 18 months ago,, which was greeted with much scepticism at the time.

https://www.bbc.com/news/articles/c39jj9vkr34o

Men:

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But even if the Cambridge team obtains a five sigma result, that won't be conclusive proof that life exists on the planet, according to Prof Catherine Heymans of Edinburgh University and Scotland's Astronomer Royal, who is independent of the research team.

"Even with that certainty, there is still the question of what is the origin of this gas," she told BBC News.

"On Earth it is produced by microorganisms in the ocean, but even with perfect data we can't say for sure that this is of a biological origin on an alien world because loads of strange things happen in in the Universe and we don't know what other geological activity could be happening on this planet that might produce the molecules."

That view is one the Cambridge team agree with; they are working with other groups to see if DMS and DMDS can be produced by non-living means in the lab.

 

 

 

[Sjørøver]

Starbase blir offisielt en by. For all Mankind vibber. 

https://www.nrk.no/nyheter/elon-musks-starbase-blir-en-texas-by-1.17403696