NASA | Fermi Proves Supernova Remnants Produce Cosmic Rays

The video explores the phenomenon of supernova explosions and their role in producing cosmic rays. It highlights the mystery of how these particles are accelerated to high speeds and the challenges in tracing their origins. Enrico Fermi's theory on cosmic ray acceleration is discussed, along with the role of supernova remnants. The Fermi Gamma-ray Space Telescope's observations provide insights into the production of gamma rays, confirming that supernova remnants accelerate protons. The video concludes with the ongoing research to understand the maximum energies of these particles.

What happens to the core of a massive star after a supernova explosion?

• It disintegrates completely.

• It forms a new galaxy.

• It becomes a white dwarf.

• It turns into a neutron star or a black hole.

How do cosmic rays gain energy in supernova remnants?

• By interacting with dark matter.

• By colliding with other cosmic rays.

• By crossing shock waves multiple times.

• By absorbing light from nearby stars.

What is the role of molecular clouds in the production of gamma rays?

• They reflect cosmic rays.

• They block cosmic rays from escaping.

• They absorb gamma rays.

• They provide protons for cosmic ray collisions.

What did the Fermi Gamma-ray Space Telescope confirm about supernova remnants?

• They accelerate protons.

• They accelerate electrons only.

• They do not produce cosmic rays.

• They are not related to gamma ray production.

What is still uncertain about the accelerated protons in supernova remnants?

• Their ability to produce light.

• Their interaction with dark matter.

• Their exact origin.

• Their maximum energies.