A small rocky object in space that reaches the ground intact is called a meteorite.

Here's the breakdown:

* Meteoroid: A small rocky or metallic object in space.

* Meteor: The bright streak of light we see when a meteoroid enters the Earth's atmosphere and burns up.

* Meteorite: A meteoroid that survives its fiery descent through the atmosphere and lands on Earth.

So, a meteorite is the leftover piece of the meteoroid after it has hit the ground.