Some of us ponder about the Universe and its phenomena and ask:

"Are all the established theories absolutely true, as many astronomers state, or are some of them mere speculations? Could alternative theories or speculations also give explanations to the mysteries of our Universe ?"

Here are five alternative ideas.

I challenge the readers to find what is wrong in my reasoning !

1. Neutrinos without mass explain the dark matter.
2. Gravitation from the dark matter might cause redshift.
3. Gravitation itself is also redshifted.
4. A static Universe can exist.
5. An alternative Universe without expansion has properties, that to a large extent is equal to those in our Universe.

In the following pages you can read my reasoning.