Live data from Hacker News

First atmosphere found on Earth-like planet in habitable zone of distant star

bbc.com

151–160 of 330 posts

Re: First atmosphere found on Earth-like planet in habitable zone of distant star

#152
post #2

48 light years is in our back yard. Close enough that we could probably develop a probe to get there in the next few centuries and check it out. What are the current popular candidates for propulsion systems capable of accelerating to near the speed of light?

This is so exciting.

Re: First atmosphere found on Earth-like planet in habitable zone of distant star

#153
This whole search for life outside planet Earth is ... stupid.

Life is already on this planet. Why would it matter whether life exists outside of this planet or not? I mean, this is pointless. I understand that some have a financial motife to drive this narrative, but it is not logical. The counter argument is quite simple: IF there is no divine being, then ALL of life's complexity is logical and natural. So, it really does not matter WHERE it originates nor how many times. Why would it matter if it originated 10000x or only once? Now, I do not doubt that it has originated several times rather than once, but my point is that this extra-terrestrial search MAKES ABSOLUTELY NO SENSE AT ALL. That is not to say that research and exploration in space are pointless, but that it IS pointless to "search" for extraterrestrial life. Yet none in the media point that out. It's all as if it were some magical, mythical quest here.

Re: First atmosphere found on Earth-like planet in habitable zone of distant star

#154

This whole search for life outside planet Earth is ... stupid. Life is already on this planet. Why would it matter whether life exists outside of this planet or not? I mean, this is pointless. I understand that some have a financial motife to drive this narrative, but it is not logical. The counter argument is quite simple: IF there is no divine being, then ALL of life's complexity is logical and natural. So, it real…

life generates intelligence , intelligence (may) generate traversable wormholes

Re: First atmosphere found on Earth-like planet in habitable zone of distant star

#155
post #2

48 light years is in our back yard. Close enough that we could probably develop a probe to get there in the next few centuries and check it out. What are the current popular candidates for propulsion systems capable of accelerating to near the speed of light?

why don't they check us out first?

Re: First atmosphere found on Earth-like planet in habitable zone of distant star

#156

Earlier quoted context omitted.

Knowing the variety of lives lived on earth as we speak, I'm fairly certain the first space born generation would adapt to it. Provided the Earthlings that were sent along don't let their incarceration induced insanity infect the youngin's.

Maybe I'm over-thinking things. It seems like a lot of people's existences essentially revolve around a pocket-sized glowing rectangle. Future AI and a database of all of humanity's experience before launch might be enough to keep the generational populace amused and distracted for the entiriety of their meagre, trapped existence... .

[deleted]

Re: First atmosphere found on Earth-like planet in habitable zone of distant star

#157

Earlier quoted context omitted.

Probably more likely that we work out how to fold spacetime than we get there in anything like a high enough percentage of the speed of light - the fastest object we ever made travelled at something like ~0.064% * C so we are looking at ~750 years with current technology and presumably we'd need to switch on the probe in 3/4 of a millennium and figure out how to slow it down and get it into some sort of orbit around…

It’s highly unlikely we’re ever getting FTL. We should become comfortable with that and let go our fantasies. Let theoretical physicists chug away at this, we should get underway with projects that are possible with known science.

[dead]

Re: First atmosphere found on Earth-like planet in habitable zone of distant star

#158
post #134
post #64

Earlier quoted context omitted.

I wonder about all the extraterrestrial AI swarms that have already imaged earth. Surely it has happened. They must have all spotted our planet millions of years ago and must be watching us with a continuous high-resolution feed. They've seen our dinosaurs. Their interest will really be piqued when they finally see us invent electricity, though that might be some time in the future for them. Perhaps even gravitationa…

As Lynn Margulis reminded us we are not the main show. Our individual intelligence is highly over rated. The brain itself is kludge upon kludge accumulating over thousands of years, to solve problems that keep changing with time and environmental changes. Its quite a piece of crap actually if you tabulate all the accumulated junk. We arent as interesting as we think we are. Some of the tech and knowledge generated mi…

> But compare it with to photosynthesis

Artifical solar capture systems exist. Synthetic biology also bridges that gap as well and the genetic basis is known and has been manipulated. Granted, coming up with more efficient photosynthesis is very hard, but I don't share your "we humans are stupid" opinion here at all whatsoever.

> or butterfly metamorphosis

Nothing fascinating here. It is just a genetic program. Viruses have similar programs too - yes, no metamorphosis, but take retroviruses and the syncytium. Mammals only reproduce thanks to retroviruses (not 100% correct, but look at this here: https://www.pnas.org/doi/10.1073/pnas.0707873105)

> or the fact that microbes can double their population in a few hours

Wow, we humans surely do not have cells that double. Oh wait ... nevermind. Humans consist of cells. Who would have thought...

Yes, microbes are much faster, but they don't have to coordinate as much as humans do in 3D, not even in a bacterial biofilm. And we have to double a lot more DNA than bacteria do, so of course they are faster.

> about a rose or a redwood tree than all the random and superficial activity the chimp brain produces

That comparison is weird. A rose is thinking as much as a chimp brain?

The human brain is special. Chimps are very clever too but humans have very solid abstract thinking. Animals have this too, to some extent (predator hunting prey, chimps have hunting strategies) but e. g. look at mathematics - animals don't waste their time coming up with higher order theorems.

Re: First atmosphere found on Earth-like planet in habitable zone of distant star

#159
post #64

Earlier quoted context omitted.

I wonder about all the extraterrestrial AI swarms that have already imaged earth. Surely it has happened. They must have all spotted our planet millions of years ago and must be watching us with a continuous high-resolution feed. They've seen our dinosaurs. Their interest will really be piqued when they finally see us invent electricity, though that might be some time in the future for them. Perhaps even gravitationa…

This comment encapsulates how poorly we humans are at accepting unknowns. For me, that explains a lot of our belief systems. The fact we can’t just take the unknown but instead have to fill in the blanks with what ifs. and create a narrative like we know anything about the unknown thing. It helps us feel like we understand it more. That’s literally how religions and a lot of other things get created, it’s a pattern,…

It’s how science and discoveries are done too…
Post reply on HN