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In 1969, a celestial light show burst through the sky over Chihuahua, Mexico.

These lights in the sky are called meteors.

Or is that meteorites?

Maybe meteoroids?

Are those all different things?

And if they are, what is the difference?

Actually, they are all different.

But they're pretty closely related.

The streaks of light are in fact meteors.

But the small, rocky bodies that cause the lights--

those are meteoroids.

And when a piece of a meteoroid survives the trip and hits the ground,

that object is called a meteorite.

So let's talk about our Mexican light show.

It actually started out as a single object about the size of a car flying through space.

That object was a meteoroid, a body orbiting the sun that's smaller than an asteroid or comet.

In February 1969, that meteoroid hit Earth's atmosphere.

And it hit it fast.

Meteoroids fall at a minimum speed of 25,000 miles per hour.

At that speed, the friction from the air began to heat up the object.

In fact, it made it so hot that it began to burn brightly across the sky as a meteor.

This particular meteoroid didn't just burn.

It exploded into pieces.

Now, most meteoroids burn up entirely as meteors.

And some of these pieces did just that.

But a few made their way through the atmosphere to hit the ground.

Those remnants are known today as the Allende Meteorite.

Yeah.

Even though there are lots of stones, they're all considered part of the same meteorite.

All in all, about two tons of this meteorite was recovered.

Study of the Allende Meteorite reveals that it is

one of the oldest objects in the solar system--

older than Earth itself.

So where do meteoroids like this come from?

Well, almost all of them are actually fragments of asteroids,

the larger rocky bodies that orbit the sun and a big belt between Mars and Jupiter.

A few, though, are actually moon rocks.

And some even come from Mars.

So if you ever see one of these interplanetary travelers lighting up the night sky,

now you'll know that you're seeing a meteor caused by a burning meteoroid.

And if you're very lucky, you might even find a meteorite when it hits the ground.

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For more infomation >> DEMYSTIFIED: What's the difference between meteoroids, meteors, and meteorites? - Duration: 2:58.

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Luke Shaw explains the difference between Solskjaer and Mourinho - Duration: 2:51.

 Luke Shaw has praised Ole Gunnar Solskjaer for reinstating "attacking, quick play" at Manchester United

 The Norwegian replaced Jose Mourinho earlier this month as he took over at Old Trafford until the end of the season, and he's won his first two matches in charge at Cardiff and at home to Huddersfield

 Solskjaer's side take on Bournemouth at home on Sunday, and left-back Shaw - who infamously felt Mourinho's wrath on several occasions during the Portuguese's time in charge - says the former United striker knows exactly what the club's fans want

  "I think you can see from the outside how much he has changed things in such a short space of time," Shaw told Sky Sports

 "He is just a really positive manager, he knows what the club needs and also what the fans want in the way we are playing

 "He's bringing that attacking, quick play back to Old Trafford. I'm sure the fans are going to appreciate that as much as we [the players] do

"  Although the dismissal of Mourinho was largely expected following United's below-par start to the season which has left them 19 points off top spot, the appointment of Solskjaer as interim boss was a surprise

 And Shaw says he had no clue that it was happening.  "The truth? My girlfriend told me," he said

 "I woke up in the morning and had a shower and she ran out of the room and told me

 "I did not have a clue, I didn't look at my phone or anything. That's how I found out

from my girlfriend."