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IMO, this is an important point. It is hoped that a solution (AI or otherwise) of a math/physics problem gives some insight to a new...

I am amazed at how long it has taken for this matter to be mentioned on PF. A Millennium problem, C-D, has been solved (or so it seems)...

With the James Webb telescope actively probing around the atmospheres of distant exoplanets, scientists are no longer guessing if...

Above the list of characteristics of terran life, in the third paragraph: The NASA definition of life, “Life is a self-sustaining...

I like NASA's idea of requiring the ability to evolve. I hadn't considered that.

It's similar to a photographer taking a photo of an iconic scene at a location. We like to go there ourselves and take photos of our...

For me, this is a huge advantage, with my ongoing and worsening health problems. It's becoming more and more difficult for me to get...

There are many definitions of life. Non-reign supreme, but some are probably considered more useful, like the NASA definition (which has...

There seems to be a variety of definitions, some of which (IMO) would include things as basic as prion diseases, and others would...

I think there's a technical definition of life. @BillTre may know it.

Probably if there are aliens they don't want to be detected.. (espiecally with a violent animal like us... :oldbiggrin: ). Have you...

You just have to reduce the emission rate low enough that they are only observed occasionally, one at a time.

We don’t. All we observe is the dot on the photographic film screen where the photon landed and was absorbed. As an aside, any...

Many popsci presentations really grossly misrepresent “the” double slit experiment. There are at least three different types of “double...

On Earth, we seem to find life in places we long thought were impossible, as long as there is some source of energy. And the definition...