Rasenberg Center

07/06/2026

When talking about climate change many times the respond is that there always have been climate changes. This is true.

But the scale of the catastrophe depends on the scale of the climate change. And the history of our planet Earth has taught us that catastrophes can be huge.

444 million years ago 80% of marine life became extinct
360 million years ago 80% of all species became extinct
252 million years ago 95% of all species became extinct
201 million years ago 76% of all species became extinct
66 million years ago 70% of all species became extinct

Climate change can have a huge impact on life on planet Earth.

30/05/2026

I would like to go back in time with a time machine to the time of the dino's. I will not survive that long I guess but it will be a few wonderful hours

10/05/2026

The universe is not for us to conquer. The universe is for us to explore.

There is a big difference. Read your history books.

19/04/2026

Only a real master knows that he/she will always be the pupil

12/04/2026

Many children are interested in dino's. And so was I as a child. But with growing up most lose their interest and move on. Not for me. As a young teenager I bought my first book about the pre history ( of course I still have it ) from my savings. With the info out of this book I gave my first public speaking at school.

The fascination for the period of time before humans walked the Earth never left me.

11/04/2026

Where is everybody?
The Fermi paradox

During a live online event I asked the panel members, who where all scientists in astronomy, what they thought about the Fermi Paradox. I asked the question without explaining the paradox, without giving my thoughts about it. I did that with a reason, I didn't want them to react on me. I wanted to hear their thoughts.

But, they told me it isn't really a paradox and didn't agree with Fermi his ideas. So here I want to give it to you, for you to decide.

Okay sofar. Then what is the Fermi paradox and who is Fermi?

The universe is so huge, there should be intelligent life out there. But,.....where is everybody? This is the main question and paradox. This huge space, huge universe, is it that empty? Are we alone?
Possibilities:
● life is incredible rare
● intelligent civilizations destroy themselves before they can explore the universe
● They are there, but hiding

I think that life is certanly very, very rare. It is one of the wonders of the universe. Maybe the biggest wonder of all. It all started with hydrogen and helium after the big bang and billions of years later, here we are. Very complex life forms, intelligent life.

Before we or any other civilization will explore the universe it needs to develop to a certain level. And we are not there yet. We are still an agressive, violent, destructive species that feels the need to conquer. And we know how that went on Earth. We should not conquer. Space is not to conquer. Space is to explore, to learn.

Other species maybe survived and not destroyed themself but developed themself to a higher level. And yes, then they are smart, intelligent enough to know they should hide, not driven by fear but because they don't want to interfere. And do not what we did; invite aliens to our world.

Enrico Fermi was a Nobel Prize-winning physicist who predicted the existence of neutrinos and helped create the first artificial nuclear reactor. He was known to pose simple but seemingly unanswerable questions.

Fermi's argument : the timescale to spread around the galaxy is much shorter then the time scale to evolve intelligence. So, the fact that aliens aren't here and weren't here long time ago, when we were at the level of slime balls is telling us that we probably are alone, at least in our galaxy.

What do you think?

Enrico Fermi

18/03/2026

As a science storyteller or science communicator how do you start your story or article?
With "Once upon a time in a fareway galaxy" ? 🤔

16/03/2026

I discovered not everybody is as enthusiastic about the Fermi paradox. And that's okay. We need critical thinkers in the world.

The Fermi paradox in a nutshell.
The universe is so huge, there should be intelligent life there. But,.....where is everybody?
Possibilities :
● life is incredible rare
● intelligent civilizations destroy themselves before they can explore the universe
● They are there, but hiding

The Fermi paradox is mainly about intelligent life but what about the origen of life, the development of life. Even the most simple life forms (bacteria) are so very complicated. ( and interesting)
On Earth it took about 3.7 billion years before evolution developed intelligent life. This with some serious mass extinction periods.

So, wrapping this together, life on Earth and the possibilities of life elsewhere in the universe is complicated, fascinating, rare and worth studying.

12/03/2026

22/02/2026

Sometimes when i read my pre historic and paleontology books my mind is wandering off and visualizing that period of time on Earth. Life everywhere; in the seas and oceans, on land and in the air. And not a single human. Not one. Nowhere. Earth without humans.