Bank of England Warned to Prepare for Aliens

[The Salt Umpire]

That's one of my other preferred resolutions to the Fermi Paradox. There weren't enough heavy elements around in the early universe for life to evolve. The JWST has shown that there are perhaps more than expected, however.

That was my thought. How long did it take for the Population II stars to go thru their lives and then novae, seeding the cosmos with elements needed for Population I stars...and us? The Sun formed from molecular clouds of exploded star guts when the Universe was 8 billion years old.

It took this long to evolve us from elements present in the molecular cloud from which the Sun came 4.3 billion years ago.

I like the thought that I, a sentient being created from starstuff, is looking at stars, even exploded stars, with an object made from exploded starstuff when I use my telescope.

I think we are first.

 

[Asbo Zaprudder]

That was my thought. How long did it take for the Population II stars to go thru their lives and then novae, seeding the cosmos with elements needed for Population I stars...and us? The Sun formed from molecular clouds of exploded star guts when the Universe was 8 billion years old.

It took this long to evolve us from elements present in the molecular cloud from which the Sun came 4.3 billion years ago.

I like the thought that I, a sentient being created from starstuff, is looking at stars, even exploded stars, with an object made from exploded starstuff when I use my telescope.

I think we are first.

Possibly so, The JWST has seen evidence of carbon and oxygen early on in the universe, but other elements, such as nitrogen, phosphorus, and sulfur are just as vital. No problem sourcing hydrogen, obviously. Heavier elements present as cofactors in proteins include iron, magnesium, manganese, cobalt, copper, zinc and molybdenum.

All the elements vital to life from carbon (N=6) up to niobium (Z=41) are released when low-mass stars transition to white dwarfs or in type 1a and II supernovae. Beyond niobium, a lot of the elements are mostly created by neutron star collisions, but I don't think any of them are vital cofactors in proteins apart from molybdenum (Z=42), which is an essential element in most terrestrial organisms. Scott et al. ("Tracing the stepwise oxygenation of the Proterozoic ocean" in Nature (2008), 452) speculated that a scarcity of molybdenum in the Earth's early oceans could have strongly influenced the evolution of eukaryotic life.

JADES: Carbon enrichment 350 Myr after the Big Bang in a gas-rich galaxy

Finding the emergence of the first generation of metals in the early Universe, and identifying their origin, are some of the most important goals of modern astrophysics. We present deep JWST/NIRSpec spectroscopy of GS-z12, a galaxy at z=12.5, in which we report the detection of C...

arxiv.org

 

[Candleicious Ghost]

I look forward to the announcement that intelligent life has been discovered in the white house.

they would need a horde of forensic people with microscopes, tweezers and petri dishes.

I seriously doubt they would be playing patty-cake with various world governments. We would know.

Really? what would they be doing with world governments if not playing patty cake? /s

The postmodern panspermia - spreading our seed boldly where no man has gone before. Also spreading our bacteria and diseases as well as acquiring new ones. We'll likely repeat the same mistakes all over again. We will also try to put our stamp on any alien cultures that don't resist us successfully. We can't help ourselves, even if we performatively lament our douchebaggery. It's possibly a common trait of advanced civilisations in any case.

Or we take those traits and become The Empire once we have conquered enough worlds

 

[Candleicious Ghost]

Hey maybe Melania is the alien

 

[Asbo Zaprudder]

Hey maybe Melania is the alien

Нет, она робот.

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[The Salt Umpire]

they would need a horde of forensic people with microscopes, tweezers and petri dishes.

Don't you mean Peach-tree dishes?

 

[The Salt Umpire]

Possibly so, The JWST has seen evidence of carbon and oxygen early on in the universe, but other elements, such as nitrogen, phosphorus, and sulfur are just as vital. No problem sourcing hydrogen, obviously. Heavier elements present as cofactors in proteins include iron, magnesium, manganese, cobalt, copper, zinc and molybdenum.

All the elements vital to life from carbon (N=6) up to niobium (Z=41) are released when low-mass stars transition to white dwarfs or in type 1a and II supernovae. Beyond niobium, a lot of the elements are mostly created by neutron star collisions, but I don't think any of them are vital cofactors in proteins apart from molybdenum (Z=42), which is an essential element in most terrestrial organisms. Scott et al. ("Tracing the stepwise oxygenation of the Proterozoic ocean" in Nature (2008), 452) speculated that a scarcity of molybdenum in the Earth's early oceans could have strongly influenced the evolution of eukaryotic life.

JADES: Carbon enrichment 350 Myr after the Big Bang in a gas-rich galaxy

Finding the emergence of the first generation of metals in the early Universe, and identifying their origin, are some of the most important goals of modern astrophysics. We present deep JWST/NIRSpec spectroscopy of GS-z12, a galaxy at z=12.5, in which we report the detection of C...

arxiv.org

And IIRC, the stellar evolution portion of my astronomy classes is that low mass stars take forever to go novae, it's the big hot ones that blow first. Red dwarf stars may have lives as long as a trillion years.

 

[Candleicious Ghost]

What about all these planets they keep finding that are described as "earth like" is there some set criteria for such a description?

Whenever I hear that my eyes roll and I keep wondering do they mean lush, thriving world with plants and native fauna or is it just a nice planet that's now a dead world but full of plant life?

 

[camdudetenger2018]

Hey maybe Melania is the alien

lol from outer space and from what planet

 

[Asbo Zaprudder]

And IIRC, the stellar evolution portion of my astronomy classes is that low mass stars take forever to go novae, it's the big hot ones that blow first. Red dwarf stars may have lives as long as a trillion years.

With white dwarfs, it can take from tens of millions of years to billions of years to go type 1a supernova, depending in the accretion rate of matter from a companion star. White dwarfs start off with masses from 0.4 to 0.7 solar masses and explode as a type 1a supernova if their mass reaches 1.44 solar masses. You are correct that more massive stars have shorter lives.

Lives and Deaths of Stars

 

[Candleicious Ghost]

lol from outer space and from what planet

The planet where they speak like you can't understand them

 

[Asbo Zaprudder]

What about all these planets they keep finding that are described as "earth like" is there some set criteria for such a description?

Whenever I hear that my eyes roll and I keep wondering do they mean lush, thriving world with plants and native fauna or is it just a nice planet that's now a dead world but full of plant life?

The only Earth-like world that we know of for certain is the Earth. Everything else is inference and speculation. There is estimated to be one planet with similar mass to the Earth for every five stars in the Milky Way, so perhaps 40 billion. If one in a thousand (0.1%) of these has a suitable atmosphere and climate for life, that would be 40 million candidates. That's roughly one on average in a volume of 200,000 cubic light years within the galaxy or about 60 light years apart.

List of potentially habitable exoplanets - Wikipedia

en.wikipedia.org

 

[Set Harth]

Perhaps the spacecraft that explodes nuclear bombs in its butt might go faster

"I learned it by watching you!" - the spacecraft

 

[The Salt Umpire]

"I learned it by watching you!" - the spacecraft

"Son, I'm sorry I passed on my lactose intolerance genes to you. Have some more Velveeta so we can go faster."

 

[SithHappens]

What about all these planets they keep finding that are described as "earth like" is there some set criteria for such a description?

Whenever I hear that my eyes roll and I keep wondering do they mean lush, thriving world with plants and native fauna or is it just a nice planet that's now a dead world but full of plant life?

Just that are within the goldilocks zone from its sun where conditions 'could' be earth like.

From light years away Earth, Venus and Mars might be considered to be in that zone, but as we know only earth is earth like. Venus and Mars may have been a long time ago.

 

[Asbo Zaprudder]

The Goldilocks Zone also moves outward from a star as it evolves along the Main Sequence. However, it could extend farther from a star than is usually assumed.

The Habitable Zone | ASTRO 801: Planets, Stars, Galaxies, and the Universe

The Earth might become uninhabitable in a few hundred million years time - well before the Sun expands into its red giant phase.

 

[Kamen Rider Blade]

The Earth might become uninhabitable in a few hundred million years time - well before the Sun expands into its red giant phase.

That should give Humanity more impetus to develop FTL and migrate off the planet.

 

[Asbo Zaprudder]

That should give Humanity more impetus to develop FTL and migrate off the planet.

Alternatively, we could try stellar lifting to reduce the Sun's mass and thereby its luminosity (also extending its lifespan), deploy solar shades, or move the Earth farther from the Sun. As most species don't last longer than a few million years, we might have uploaded ourselves into some sort of VR millions of years earlier in any case. We might only want to hang onto the original physical Earth for nostalgia, but if we can simulate any version of it that we desire, why bother? Also why bother going anywhere else if one can simulate any possible reality? Actual space is very unfriendly to biological beings.

 

[The Salt Umpire]

The Goldilocks Zone also moves outward from a star as it evolves along the Main Sequence. However, it could extend farther from a star than is usually assumed.

The Habitable Zone | ASTRO 801: Planets, Stars, Galaxies, and the Universe

The Earth might become uninhabitable in a few hundred million years time - well before the Sun expands into its red giant phase.

Then we move further out. When Sol goes Red Giant half a billion years from now and turns Earth into a orbiting charcoal briquet, the Galilean moons and Titan should be far enough away.

ALL THESE WORLDS ARE YOURS EXCEPT EUROPA

 

[Toril Toran]

I think the distances are far too great.

Neil Degrasse Tyson once said that if you could shrink our solar system so that our sun was the size of a period at the end of a sentence, the nearest star would still be four miles away.

That’s a pretty huge gap.