Category:Stardust

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Galaxy NGC 1300.jpeg


We are stardust...
For you are dust, And to dust you shall return


Starburst... stardust origins.jpg



“We are not simply in the universe; we are born from it.”

-- Neil de Grasse Tyson, an astrophysicist and the director of New York City’s Hayden Planetarium


"Historians of science a hundred years hence will remember twentieth-century astronomy for two main accomplishments. One is the development of a cosmology of the early universe, from creation through consequent expansion. The other is the understanding of stellar evolution. Although not as well known among nonscientists as the Big Bang, the notion of the evolution of stars provided the foundation upon which astronomers built the grand synthesis of cosmological origins. The idea that stars change as they age and that these changes in turn alter their local environment and the chemical makeup of their parent galaxy—an idea that has developed only within the past fifty years—stands in the same relation to astronomy as the Darwinian revolution does to biology. It is a conceptual breakthrough that makes possible the modern understanding of the origin, evolution, and fate of the universe.

Because all elements heavier than helium have been nucleosynthesized by stars, all the heavier chemical elements that are the raw materials of life were one time part of a stellar life cycle. We are the product of the stars. This is one of the most profound insights to have arisen out of twentieth-century astronomy. Life is clearly a property of the evolving universe made possible by stellar evolution." (2000) -- Allan Sandage


 

Star Galaxies Revealed - Origins of Life Mission ESA-NASA.jpg


 

Because my atoms came from those stars


I am a significant... speck of stardust.jpg


"Atoms that comprise life on Earth
the atoms that make up the human body,
are traceable to the crucibles
that cooked light elements into heavy elements
in their core under extreme temperatures and pressures.
These stars, the high-mass ones among them,
went unstable in the later years.
They collapsed and then exploded, scattering
their enriched guts across the galaxy.
Guts made of carbon, nitrogen, oxygen.
And all the fundamental ingrediants of life itself.


These ingredients become part of gas clouds
that condense, collapse, form the next generation
of solar systems.
Stars with orbiting planets.
And those planets now have the ingrediants for life itself.


So when I look up at the night sky
and I know that, yes, we are part of this universe,
we are in this universe,
but perhaps more important than both of those facts
is that the universe is in us.
When I reflect on that fact, I look up --
Many people feel small, 'cause they're small and the universe is big,
but I feel big.


Because my atoms came from those stars."
-- Neil deGrasse Tyson


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Woodstock - Joni Mitchell / https://www.youtube.com/watch?v=3aOGnVKWbwc

We are stardust
We are golden
And we've got to get ourselves
Back to the garden


Dark sky by Jack Fusco.jpg


Ergo, stars are, we are, older than we thought.png


We Are Older Than We've Thought. We Are Born From the Stars, Yes We Are ...



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Media in category "Stardust"

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