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🌌Galaxy vs Nebula☁️

Galaxies and nebulae are both spectacular sights in deep space, but they are very different things — one is a star system, the other raw material.

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🌌Galaxy
  • A huge gravitationally bound system of stars
  • Contains billions to trillions of stars
  • Has a defined structure: spiral, elliptical or irregular
  • Holds stars, gas, dust, planets and dark matter
  • Our Milky Way is one example among trillions
☁️Nebula
  • A cloud of interstellar gas and dust
  • Often the birthplace of new stars
  • Much smaller than a galaxy
  • Can glow, reflect light or appear dark
  • Frequently found within galaxies, including ours

Verdict

A galaxy is a massive star city; a nebula is a cloud of gas and dust often inside a galaxy. Nebulae are the nurseries where stars form, so they are part of galactic life cycles.

Frequently asked

Are nebulae inside galaxies?+

Usually yes. Most nebulae lie within galaxies, including many visible in our own Milky Way.

Why are some nebulae called star nurseries?+

Gravity pulls their gas and dust together until it collapses and ignites into new stars.

How big is a typical galaxy?+

Galaxies span tens of thousands of light-years and contain billions or trillions of stars.

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