Danish Scientists make new assumption in the origin of life (incl translation of website)

Danish Scientists make new assumption in the origin of life

Viden Om's Danish website

Knowledge About - The extreme creation of the solarsystem

Imagine a storm that is the size of thousands of atombombs and then when it all quiets down comes the worst of it all: A mega star 30 times larger than our own sun explodes right in our neighbourhood. It was in that kind of rough environment that our solarsystem was created.

(visit the link for the full news article)



[edit on 26/2/08 by flice]

This is amazing news. I will definately try to see if I can stream this program from their website.

It might put quite a damper on the whole contact beyond our own system incl. the newly send probe with Beatles songs.
I will do my best to follow this development.

How do you guys feel about this? What if us Earthlings turn out to be a fluke...

Cheers

Knowledge About - The extreme creation of the solarsystem
Imagine a storm that is the size of thousands of atombombs and then when it all quiets down comes the worst of it all: A mega star 30 times larger than our own sun explodes right in our neighbourhood. It was in that kind of rough environment that our solarsystem was created.
Previously scientists assumed that the solarsystem was born in a much quieter environment where a single medium sized star exploded and made clouds of gas and dust come together - first the sun was formed and then small pieces of planets which grew larger and larger without interference.

Radioactive stellarwinds
But the new research shows that our solarsystem was created in a wild cluster of stars which we can find other places in the universe such as the Carina cluster.

Here you find a dense cluster of gigantic stars 30-80 times the size of our sun. These monsterstars sprouts collosal radioactive winds which moves over 20.000 times faster than the worst hurricanes on Earth. These winds can make clouds of hydrogen, helium and heavier elements come together and form new smaller stars.
It was something similar to this that happend in our solarsystem around 5 billion years ago, where a cloud of gas and dust came together.
In the center of the cloud the sun was formed and around it revolved a lot of matter which over time condensed into the planets.

We were lucky
But 1 million years later when the early solarsystem was in place, a megastar exploded in a supernovaexplosion and it could have ruined our solarsystem totally.
- If our solarsystem had been too close to the megastar then the explosion would have torn the early solarsystem apart, says Martin Bizzarro, teacher at the Geological Museum.

On the other hand we were also lucky that our sun wasn't too far away from the megastar, for with the explosion came new radioactive material that was part of giving our rocky planet Earth the exact right compound necessary for a basis of life.
- We were lucky. One could say that we were in the right place at the right time, says Martin Bizzarro.

Ask the expert
You can after the program ask questions to teach Martin Bizzarro.
This can be done on "Viden Om"'s scienceblog which you find here

For those of you able to receive it. There will be more about this at 20:00 CET on the Danish network channel called DR2.


[edit on 26/2/08 by flice]

So could this be the asteriod belt or something furthure out.I also heard they were making some claims lately.Just waiting to see what they are.

Updated with translation of webpage
not 1 liner

Apparently they came to this conclusion after discovering that some radioactive markers, iron-60 and aluminum-26 weren't present at the same time in our solarsystem.
These markers that would have travelled to our system after a supernova...

however, the isotopes aluminum-26 and iron-60 didn't arrive to us at the same time. While aluminum-26 was here at the beginning iron-60 didn't arrive here until 1 million years after the creation of the solarsystem.
Since these isotopes are present because of novas, that means that our system got blasted not once... but twice, and it was the second blast that provided us with the final compound to form our way of life.

I'm not sure if you can stream this, but give it a try.
While the presenter is Danish, they use a lot of graphic explanation and Martin Bizzarro speaks english throughout the interview:

Viden Om show
and select the one named "Viden om - 26.02.08"

[edit on 27/2/08 by flice]

light years away for a super-nova? what about our back-garden? If a star starts to burn but the gravity is not strong enough to keep it this way , it would create a "mini-nova" . A companion of the Sun would do it! And not once, but every time when it comes in the proximity of the Sun, it could do it again and again