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First images from Euclid are in

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Re: First images from Euclid are in

#291

Post by lazide »

sourcepluck wrote: post #282
shiroiushi wrote: post #166

Earlier quoted context omitted.

Climate change, even in the worst case, won't come remotely close to eradicating all life. It won't even eradicate humans (though it'll suck for people living on the coasts or in Florida). Even the very worst imaginable catastrophe wouldn't eliminate the various single-celled organisms and extremophiles. But there are a lot of larger species that are at risk. Maybe I'm just species-ist, but I'm more concerned about t…

> Climate change, even in the worst case, won't come remotely close to eradicating all life. It won't even eradicate humans (though it'll suck for people living on the coasts or in Florida). Even the very worst imaginable catastrophe wouldn't eliminate the various single-celled organisms and extremophiles. I have heard intelligent people claim a good few times now, and feel like it's obviously unscientific. It seems…

Co2 has had spikes up to > 5000 ppm in the atmosphere in the past.

Is anything possible? Sure.

Is anything currently proposed as possible likely to sterilize the planet? No.

We could get hit by a mini-moon sized asteroid tomorrow though that liquifies the crust, of course.

Re: First images from Euclid are in

#292

Post by dreamcompiler »

Night_Thastus wrote: post #277
1970-01-01 wrote: post #272

Earlier quoted context omitted.

Once we have fusion reactors, it won't be.

Fusion reactors won't really help. Sure, you can accelerate indefinitely - but only at maybe 1G or a bit more if you don't want to kill the occupants. Then you have to flip and decelerate. Unless we find a way to freeze/stasis people, the limits are still shockingly small. We'd need to start cracking some kind of jumping/FTL/etc technology to have any hope of real exploration.

Well... you don't need to freeze people if you can travel at a substantial fraction of c, because of time dilation.

Caveats:

1. It's really, really hard to supply enough energy to go that fast, even with fusion power.

2. Your passengers won't be able to go home again, because by the time they get back everyone they've ever known will be long dead.

3. Even if you could go that fast, you'll eventually hit a speck of dust and disintegrate.

Re: First images from Euclid are in

#293

Post by IAmGraydon »

mr_mitm wrote: post #278
IAmGraydon wrote: post #243

Earlier quoted context omitted.

How arrogant for anyone to look at these incredible pictures and think they know ANYTHING at all. We may be the center of it all, we may not, this may be a massive simulation, or a massive random accident. The only correct answer is to admit we know nothing. Humans are so fixated on knowing everything.

I think this line of reasoning does a disservice to all the scientists and thinkers who contributed to a considerable amount of knowledge. We learned so much about the universe in the past 100 years, it's impudent to call this nothing just because it's not everything.

I'm talking about filling in the blanks in things that are not yet known, not discounting all scientific progress. The point was that the person I replied to held just as irrational a belief as the person they were criticizing. Neither of them knows the deeper nature of reality and whether humanity was created by something or is just an accident of nature, so both of their replies are absurd as one another's.

Re: First images from Euclid are in

#294

Post by xenospn »

glimshe wrote: post #287
ratedgene wrote: post #255

This is the most beautiful thing I've ever seen in my whole life. I'm just over here worried about small nothings and now I'm filled with an overwhelming feeling that I should be a part of something much larger. Truly inspiring, and a little bitter sweet. :)

When I look to the heavens in awe, thinking about humanity's future and our place in the Universe, I remember that we still have JavaScript and thus very far from space exploration.

Can’t wait for SpaceScript!

Re: First images from Euclid are in

#295

Post by kjkjadksj »

m3kw9 wrote: post #229
colordrops wrote: post #103

Earlier quoted context omitted.

What's so important about "sharing a common ancestor"? It doesn't say anything about the spread of different types of life that could evolve, considering we have a sample size of one, and it also says nothing about how difficult it is for any particular form to evolve intelligence.

Knowing physics is roughly same every where in the universe, same rules of biology will apply elsewhere where if conditions meet, maybe earth is one of many conditions that can form life.

Within those rules are a lot of things that can get by under them. Take two points in earths history bound by the same physical laws and life can look dramatically different. You can think of it like how we all use the same microsoft word but that doesn’t lead to the same exact book being written independently twice or more often. The amount of permutations to be taken along the way is a countless number probably far larger than the number of habitable star systems in the universe.

Re: First images from Euclid are in

#296

Post by lokimedes »

xenospn wrote: post #294
glimshe wrote: post #287

Earlier quoted context omitted.

When I look to the heavens in awe, thinking about humanity's future and our place in the Universe, I remember that we still have JavaScript and thus very far from space exploration.

Can’t wait for SpaceScript!

Ada

Re: First images from Euclid are in

#297

Post by polishdude20 »

glimshe wrote: post #287
ratedgene wrote: post #255

This is the most beautiful thing I've ever seen in my whole life. I'm just over here worried about small nothings and now I'm filled with an overwhelming feeling that I should be a part of something much larger. Truly inspiring, and a little bitter sweet. :)

When I look to the heavens in awe, thinking about humanity's future and our place in the Universe, I remember that we still have JavaScript and thus very far from space exploration.

Hey JavaScript has been to space!

Re: First images from Euclid are in

#300

Post by zzzr »

densh wrote: post #258
grahamj wrote: post #91

Earlier quoted context omitted.

You don't need mirrors, you just need to get in front of the photons. A time machine or warp drive will do :) Also the past is the only thing you can perceive, there effectively is no now.

Is there a science fiction universe that explores a hypothetical warp drive that lets you travel very far relatively quickly, but the travel is only possible with simultaneous backwards time travel that's proportionate to the distance traversed? So you can hop across star systems but can't do a roundtrip A -> B -> A without significantly shifting time from the point of view of A backwards (irreversibly from the point…

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