Definition

The area of science that studies the physical properties and behavior of stars and other celestial bodies.

Example

Astrophysics helps us understand how stars are born, live, and die.

Conversation

Have you ever thought about studying astrophysics?

I’ve considered it, but it sounds really challenging.

I know, but it’s fascinating to learn about the universe!

Totally! The physics behind stars and galaxies is mind-blowing.

Synonyms & Antonyms

Root Explanation

Astrophysics is formed from "astro-" (from Greek "astron", meaning star) and "physics" (from Greek "physika", meaning natural things or nature). The word refers to the branch of science that deals with the physical properties and phenomena of celestial bodies, particularly stars.

Memory Tip

Think of 'astro-' meaning 'star' and 'physics' relating to 'natural things' — astrophysics is the study of the natural properties of stars.

Visually Confused Words