Definition

The area in space around the sun where the solar wind affects the environment, including the entire solar system.

Example

The heliosphere acts as a protective bubble for the planets in our solar system.

Conversation

Did you know that the heliosphere is like a bubble around our solar system?

Really? I had no idea it was so protective.

Yeah, it helps shield us from cosmic rays and interstellar particles.

That's fascinating! Space is more interesting than I thought.

Synonyms & Antonyms

Root Explanation

Heliosphere → It is formed from "helios" (from Greek, meaning sun) and "sphere" (from Greek "sphaira", meaning ball or globe). The word "heliosphere" refers to the region of space influenced by the solar wind and the magnetic field of the sun, essentially a bubble created by the sun's activity in the surrounding interstellar medium.

Memory Tip

Think of the 'sun' ('helios') creating a 'globe' ('sphere') of influence around it — that's what the heliosphere represents.

Visually Confused Words