Proton and nuclei moving in space are called:

Protons and atomic nuclei moving at high speeds through space are fundamentally known as Cosmic rays. These are high-energy particles originating from outside Earth's atmosphere, primarily from astrophysical phenomena like supernovae and active galactic nuclei. They constantly bombard Earth, playing a crucial role in space weather and atmospheric processes. Their composition is predominantly protons (about 90%), with a smaller fraction of helium nuclei and other heavier atomic nuclei.

• "Alpha rays" are specifically helium nuclei emitted during radioactive decay, not a general term for all high-energy nuclei in space.
• "Manta rays" are large marine fish, completely unrelated to physics or space.
• "Gamma waves" are a form of electromagnetic radiation (photons), not particles like protons or nuclei.