The scientist most likely to study a meteor flying through outer space is an astronomer.

Here's why:

* Astronomy is the study of celestial objects and phenomena, including meteors.

* Astronomers use telescopes and other instruments to observe and analyze the behavior of objects in space.

* They study the composition, origin, and trajectory of meteors, helping us understand the formation of our solar system and the potential for impacts on Earth.

While other scientists like geologists and physicists might also be interested in meteors, their focus is on the effects of meteor impacts on Earth, the composition of meteorites, or the physical processes involved in the flight of a meteor.