NASA | IBEX | What are the Boundaries of our Solar System?

The video explains the IBEX mission's study of the solar system's boundaries, including the termination shock, heliopause, and bow shock. It uses animations and a kitchen sink analogy to illustrate how the solar wind interacts with interstellar space, forming a protective barrier against galactic cosmic rays, which shields Earth and astronauts from radiation.

Explain the concept of bow shock in the context of the solar system's movement through galactic material.

How does the solar wind protect Earth from galactic cosmic rays?