What is the Universe expanding into..

Do you think there was anything before the big bang?

  • I don't think there was anything before the Big Bang

    Votes: 56 12.5%

  • I think something existed before the Big Bang

    Votes: 200 44.7%

  • I don't think the big bang happened

    Votes: 54 12.1%

  • I think the universe is part of a mutiverse

    Votes: 201 45.0%
  • Total voters
    447
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#5,501

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#5,505
Edgar Rice Burroughs' name for Jupiter was 'Sasoom', from whence came the 'Skeleton Men of Jupiter'.

http://gutenberg.net.au/ebooks06/0600591.txt

How could life exist upon a planet which one school of scientific thought claimed to have a surface temperature of two hundred and sixty degrees below zero and which another school was equally positive was still in a half molten condition and so hot that gases rose as hot vapor into its thick, warm atmosphere to fall as incessant rain? How could human life exist in an atmosphere made up largely of ammonia and methane gases? And what of the effect of the planet's terrific gravitational pull? Would my legs be able to support my weight? If I fell down, would I be able to rise again?
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#5,507
Terraforming Mars? :scratch:

We'd first have to hollow out Mars' moon Phobos in order to establish a a base of operations.

By drilling holes to release the subsurface heat of Mars, the atmosphere could then be thickened by complex bio-chemical reactions.

Following that, the detonation of nuclear explosions deep in the sub-surface permafrost would release life-giving water.

The newly evolving Martian biosphere could then be warmed up, to the brink of making it habitable, by using gigantic orbital mirrors.

Science fiction?

400px-Mars_trilogy.jpg


Yes! 😀
 
#5,509
So what chance/likleihood do you guys place on the possibility of past organic life on Mars?


just curious.


I would say ZERO, given the simple logic that among the billions of planets out there, if there was life, some should by now have advanced and communicated with us. So far all we have are the kooky "ancient aliens" presentations or UFO sightings/testimonials.


Then there's the idea that 'duds'/non-starters like Mars abound throughout the universe where catastrophe nipped it's evolution in the bud. Or that conditions limit their evolution. However, the likelihood of advancement considering the age of the universe should be high yet still no evidence. What gives?
 
#5,511
Its probable that a life-form that where lucky to exist in an environment suitable for development was at the same time, due to the advantageous environment, in need to out-greed it's co-existing inhabitants. This necessary "quality" in order top prosper, in the end led to its own distinction and in so, hindering the specie to reach the maturity to do inter solar system travel. Classical - even on universe level....

//
 
#5,514
Inescapable bottom line is limitations/scientific impossibility for actual visitation does not reconcile the fact technology does make it possible to at least communicate. Our perceived relatively primitive advancement is sufficient yet there's no answer when we call, and our phone isn't ringing.
 
#5,517
indra1 said:
"Boriska has quoted that Martians survive even today; however, they live underground because the surface of Mars is now destroyed (after the nuclear bombings)."
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Quite right, apart from the nuclear destruction part!

When the Sun cooled and conditions on the surface of Mars became unsupportive of life, the martians retreated into underground cities which they had carved out of the bedrock in anticipation of the looming disaster.

olympus-mons-8.jpg


The 25km (15 mile) high Olympus Mons is not a giant extinct volcano as astronomers think, but a giant slag heap consisting of the spoils of the underground excavations! 😉
 
#5,519
mchambin said:
Fermi paradox - Wikipedia
There is no solution so far.
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Back in 1961, Frank Drake and colleagues developed an equation to calculate the odds of the existence of extraterrestial civilisations in our galaxy.

Equation.jpg


Since 1961, astrophysicists have learned a lot more about space and the celestial objects it contains.

More and more exoplanets, some in their own Goldilocks zones, are being found using modern scientific techniques. This increases the chances of there being intelligent extraterrestial life according to Drake's equation. How many habitable planets are out there?

However, we also need to factor in TNT's suggestion - the likelihood of other extraterrestrial civilizations arising and then unintentionally killing themselves off prematurely! 😱 This decreases the chances of finding 'intelligent' extraterrestial life!
 
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#5,520
I don't waste time on Aliens. Whole thing is pointless speculation given that Star Ships will never work well at a puny 5% light speed.

Mars is stranger than I thought:

Nasa Mars rover: How Perseverance will hunt for signs of past life - BBC News

Reasonable chance of microbes given that they appeared on Earth 3.8Bn years ago:

What If Life Started on Mars? | Panspermia Theory Origins of Life

I didn't know this but there are huge craters on Mars near the poles chock full of water ice:

Mars - Wikipedia

Korolev (Martian crater) - Wikipedia
 
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