sabine-hossenfelder 1 week ago
PhD in physics #Science

Sabine | Gravity Without Mass Could Explain Dark Matter

I recently read that you can have gravity without mass. Ha, no way, I thought and had a look at the paper. It's wild, people.

The author says that there are hollow spheres scattered across the universe that have no gravitational attraction and that these spheres explain dark matter. I will try to sort it out for you.

Sabine Hossenfelder
PhD in physics