👉 An exobiologist is a scientist who studies extraterrestrial life and its potential impact on Earth. They study the various forms of life that exist outside our planet, from bacteria to viruses to complex organisms like humans. Exobiologists look at how these organisms might interact with other planets or even the universe itself if they are not already here. This field of research is crucial for understanding the potential for extraterrestrial life and its possible impact on Earth's ecosystem.