Yes, they are out there

We know that there are numerous pieces of rock in space;  ranging from dust motes to sand grains to pebbles to rocks to boulders to asteroids from the size of a bus to the size of a city.  And it's a concern that some of the bigger ones might hit Earth and cause a problem, and potentially a catastrophe.

We have reminders;  fireballs in the atmosphere, impacts on the ground, shock waves in the sky, and the occasional mystery explosion over a U.S. air base.

And meteors also hit the Moon, and those quick flashes of incineration can be seen from Earth.

(Now, I'm a bit confused about the jargon here.  They are meteors before they hit something, and meteorites after they've hit, but isn't it a meteor hitting the Moon and becoming a meteorite when it does that?)

Watch two meteorites hit the Moon

As I write this, the peak of the Perseid meteor shower is two nights away.  Astronomers and amateurs will be watching -- and we'll all be reminded that the dust and sand and pebbles and rocks and boulders in space are out there.

Somewhere.