Collisions Between 2 similar size objects

[valentin123]

when i collide two similar objects(like mars and the moon),it pass trough it and doesnt collide,so,i edited a video to make it look more realistic,here it is
Universe Sandbox Alpha Moon Hits Mercury

[JAW1002]

I've noticed that mass doesn't increase in collisions, only decreases, even without debris

[valentin123]

what happened here is mercury has more mass than the moon but the moon is bigger in diameter than mercury

[XilentDude]

Yeah, I reported that a few days ago. If you collide 2 objects of the same mass they will just lose mass. I don't really like this system. Actually I collided Earth with the mass of 1 Earth and Neptune with the mass of 0.8 Earths. Earth won the battle because his mass was bigger even if Neptune is much more bigger than Earth.