No, there are not collisions between celestial bodies every day in space. However, they do occur occasionally and can have significant effects on the objects involved and their surrounding environment.

Celestial bodies can include planets, moons, asteroids, and comets, among others. These bodies can collide due to a variety of reasons, such as orbital instability, gravitational influences, or human-made interference.

One notable example of a celestial collision occurred in 2013, when a meteoroid exploded in the skies over Chelyabinsk, Russia. The explosion was so powerful that it caused extensive damage to buildings and injured hundreds of people.

Another example is the collision that caused the formation of our moon. The prevailing theory suggests that a Mars-sized object collided with Earth early in its history, causing debris to be thrown into space that eventually coalesced into the moon.

While these collisions can have catastrophic effects, they can also create new celestial objects or alter the composition and behavior of existing ones. Collisions can also play a role in the evolution of galaxies and the distribution of matter throughout the universe.

Astrophysicists and other scientists study celestial collisions to better understand the processes that govern the behavior of objects in space. They also use this knowledge to develop strategies for mitigating the risks posed by potential collisions with Earth or other celestial bodies.

Overall, while collisions between celestial bodies are relatively rare, they can have significant impacts on the universe and our understanding of it.