Heliospher EXPLAINED : The Edge of Our Solar System ☀️ #space #heliosphere

Added: 2026-05-05

[00:00:00]We don't just exist because our sun is a gravitational ball of nuclear fusion, but also because it's a protective sort of shield for the entire solar system.

[00:00:08][music] The sun is constantly pushing out a huge stream of charged particles traveling at millions of miles per hour.

[00:00:14]This wind inflates a massive teardrop-shaped bubble around us called the heliosphere.

[00:00:18]>> [music] >> As we move through the galaxy, it pushes back against galactic cosmic rays, these sort of >> [music] >> high-energy fragments of atoms from exploded stars. And the sun's magnetic field is carried by the solar wind, creating a sort of magnetic web that entangles and deflects up to 90% of this intense interstellar radiation before it even reaches Earth. Interstellar radiation is just a like a cosmic rain of subatomic particles, mostly protons, traveling [music] at nearly the speed of light.

[00:00:45]And without the heliosphere to thin them out, this radiation would etch away our DNA and likely make life as we know it impossible across the universe around any [music] star.