An astronaut
A person who studies the Earth's atmosphere is called an atmospheric scientist or meteorologist. They study the behavior and composition of the atmosphere to better understand weather patterns and climate change.
A person who is a specialist in the study of the atmosphere and weather is called a meteorologist. Meteorologists analyze weather patterns, make forecasts, and study the impact of weather on the environment and society.
A person who travels to gain geographical or scientific information is called an explorer or a researcher. They may also be referred to as an adventurer or a field scientist, depending on the context of their travels and work.
That person is called an explorer. They travel to discover and learn about new places, cultures, and phenomena.
A person that studies rain is called a pluviologist or a hydrometeorologist. They focus on the formation, behavior, and impact of rain in the atmosphere.
tourist
A person who travels around the world is often called a "globetrotter" or a "world traveler."
The person is called an explorer. The word means a person who explores an unfamiliar area.
A person who doesn't have a home and travels constantly is commonly referred to as a "nomad" or "vagabond."
An astronaut.
A traveler
The book called 'Travels' is about one person's travels around the world and the things that they see. It is partly a biography and partly a travelogue.
A person who travels to other contries to enjoy their natural wonders are called 'eco-tourists'.
Groupie.
meteorologist
That person is called a 'meteorologist'
That kind of person is most often called a missionary.