What Is The Difference Between Meteors, Meteoroids And Meteorites?

Meteors, meteoroids, and meteorites, while all related to space, encompass different stages of a space rock’s journey towards Earth. Meteoroids are small chunks of space debris, meteors are these chunks burning in Earth’s atmosphere, and meteorites are remnants that survive the journey and land on Earth.

Meteoroids are small pieces of rock floating about in space. They orbit the sun just as planets do. They might be leftovers from the early solar system or fragments from a comet or asteroid. The exciting part begins when these meteoroids enter Earth’s atmosphere and begin to heat up due to friction. Then they transform into what we commonly refer to as “shooting stars” or meteors. This fiery journey creates a spectacular light show that we enjoy during meteor showers.

If the meteoroids are large enough to withstand the atmospheric burn and land on Earth’s surface, they are then termed as meteorites. Meteorites can range in size from tiny grains to big rocks. They can give scientists invaluable clues about the nature of different celestial bodies. Essentially, the terms meteoroids, meteors, and meteorites mark different stages of a space rock’s life cycle as it passes through space, enters our atmosphere, and lands on Earth.

1. Understanding Meteoroids

Let’s start by getting to know meteoroids a bit better. Simply put, meteoroids are pieces of space rock that travel within the solar system. They could be considered as cosmic wanderers or debris from the vast plane of our universe.

Here are some intriguing points about these space floaters:

  • Origin: Meteoroids are often remnants from the early formation of our solar system. They could be cast-offs from a comet or even rubble left over from interplanetary collisions between asteroids.
  • Composition: Meteoroids can be made of several different materials, although they primarily consist of rock, metal, or a combination of both. This composition varies greatly depending on the meteoroid’s original parent body.
  • Size Range: Believe it or not, these ‘space rocks’ come in all sizes. They can be as tiny as a grain of sand, while some are massive enough to cause catastrophic damage, like the one that led to the extinction of the dinosaurs.

Therefore, meteoroids, though usually small, are important constituents of our solar system and potentially hold many secrets about its formation and evolution.

2. The Journey of Meteors

When a meteoroid ventures too close to a planet and is pulled into the atmosphere, it embarks on a fiery journey transforming it into what we commonly call a meteor. This whole process is quite a spectacle and makes up some fascinating night sky events.

Keep these facts in mind about the transformation of meteoroids to meteors:

  • Cosmic Entry: As a meteoroid plunges into a planet’s atmosphere, the heat generated by atmospheric friction causes it to start burning up. It’s this fiery, luminous trail in the sky that we know as a meteor. The bigger the meteoroid, the more dramatic the meteor display. Check out our article on the layer that meteors burn up in if you like to learn more about this fascinating process.
  • Fireballs and Shooting Stars: ‘Fireball’ is a term for a very bright meteor, while what we commonly call ‘shooting stars’ are just regular meteors. Their bright streaks across the sky are among the most commonly observed astral phenomena.
  • Meteor Showers: When Earth passes through a trail of debris left by a comet, we’re treated with what’s known as a meteor shower. This is basically a high occurrence of meteors appearing in the sky over a short time period.

So, remember, next time when you see that flash across the sky, it’s actually a meteoroid turning into a meteor, creating those beautiful ‘shooting stars’ we often make wishes on!

3. The Transformation Into Meteorites

The transformation from a starry spectacle in the sky to a discovered rock on Earth fulfills the final journey of a space rock – becoming a meteorite. Only a fraction of meteoroids survive the fiery descent through an atmosphere, but those that do carry important clues about our universe’s past.

Consider these key elements of their transformation and discovery:

  • Atmospheric Survival: Most meteors burn up in the atmosphere, but those that withstand the high temperatures and make it to the ground become meteorites. Their survival depends on factors like size, speed, and angle of entry.
  • Characteristics: Meteorites usually have a dark, outer layer called a fusion crust, formed during the intense heating while passing through the atmosphere. On the inside, they can be stone-like, iron-nickel based, or a mixture of both.
  • Discovery Locations: Meteorites can be found anywhere on Earth. However, they’re easiest to spot in places like deserts or the Antarctic ice fields, where they stand out against the landscape.

So, next time you see a rock with an unusually dark exterior, remember it could be a meteorite, a little piece of the universe that managed to survive an epic journey and found its way to us!


To summarize, meteoroids, meteors, and meteorites all represent stages in the fascinating journey of a space rock, from floating debris in the cosmos, to a fiery spectacle in our sky, and finally, to treasures found on Earth. Meteoroids, born from the remnants of the early solar system or fragments from comets or asteroids, wander in the space around us. Once they enter Earth’s atmosphere, the atmospheric friction makes them heat up and burn, transforming them into meteors, often sighted as shooting stars. If they’re resilient enough to survive the fiery descent, they land on Earth’s surface as meteorites, potentially bearing cosmic secrets waiting to be deciphered. It’s quite a journey these rocks embark on, and the next time you witness a shooting star or stumble onto an unusual rock, remember, you’re looking at a stage of an epic cosmic journey!