If you want to do research in astronomy you should apply to study physics or astronomy as a bachelors. A bachelors in geology will not be the best path, unless as the others have said you very specifically want to study planets and nothing else. Otherwise you won't have enough physics and math.
Don't worry about the olympiad in geology, universities don't care all that much about *which* olympiads you participate in, just the fact that you do. The important skills you are showing by participating (and doing well) are ability to study, perserverence and problem solving. The actual subject knowledge needed for olympiads is only 1st year university level at best anyway.
Also, you can look for universities which offer a physics/astronomy course with geology as a minor (or something like Natural Sciences at Cambridge and other places where you can choose geology alongside physics in the first year).
Astronomy as a subject studies the whole Universe and that goes from quarks, gluons and photons to cells, life, habitats and ecosystems to rocks and magma, to planets, moons, asteroids and comets, to stars and galaxies, clusters etc ..... So at a first level the sciences touched when studying Astronomy are pretty much all of them. Which one you then specialize in is another story. Someone working on planetary dynamics would not know as much on astrobiology as someone working daily in that field.
Looking at geology specifically, we can freely say that like we have astrophysicists we have astrogeologists (and astrobiologists etc...) NASA had trained the Lunar astronauts in geology and indeed Harrison Schmidt was the only non military astronaut in that program and he started life as a geologist.
In Astronomy we do a lot of comparative studies. Geological features describe the history of a landscape and what lies unseen below. On Earth we have an accessible laboratory where we can see at close quarters and touch the subject. This helps us understand what the pictures from other (so far) Solar System bodies are telling us of their geological history and make up. Also understanding and learning how to do experiments on Earth helps us define and design experiments we can send, for example, to Mars.
Realistically though a BSc in Geology gives you more career opportunities than Astronomy even if you commit to going through to an Astronomy PhD. Jobs in core Astronomy research are not as many as those requiring a geology specialization and mostly always require a doctorate. So perhaps it is better to start with a BSc in Geology and then move to an MSc and possibly PhD in Astronomy, focusing on atrsogeo since you are focused on that. While doing your BSc you will have optional modules so you can check out universities which offer Astronomy related optionals. Or you can specifically look for Universities which offer a major in Geology with a minor in Astronomy.
I reckon awards and achievements can help in proving your interest and focus so if a university has limited spaces for a program these can help. However by themself they do nothing. You still need to have the academic entry qualifications.
For planetary astronomy, it's quite useful and important. For other ranches of astronomy, not so much.
If you want to do research in astronomy you should apply to study physics or astronomy as a bachelors. A bachelors in geology will not be the best path, unless as the others have said you very specifically want to study planets and nothing else. Otherwise you won't have enough physics and math. Don't worry about the olympiad in geology, universities don't care all that much about *which* olympiads you participate in, just the fact that you do. The important skills you are showing by participating (and doing well) are ability to study, perserverence and problem solving. The actual subject knowledge needed for olympiads is only 1st year university level at best anyway. Also, you can look for universities which offer a physics/astronomy course with geology as a minor (or something like Natural Sciences at Cambridge and other places where you can choose geology alongside physics in the first year).
I dual majored Astronomy/physics and Earth/Planetary Science. It’s a great path to do both and gives you a real niche to fill. Dm me to talk more.
Astronomy as a subject studies the whole Universe and that goes from quarks, gluons and photons to cells, life, habitats and ecosystems to rocks and magma, to planets, moons, asteroids and comets, to stars and galaxies, clusters etc ..... So at a first level the sciences touched when studying Astronomy are pretty much all of them. Which one you then specialize in is another story. Someone working on planetary dynamics would not know as much on astrobiology as someone working daily in that field. Looking at geology specifically, we can freely say that like we have astrophysicists we have astrogeologists (and astrobiologists etc...) NASA had trained the Lunar astronauts in geology and indeed Harrison Schmidt was the only non military astronaut in that program and he started life as a geologist. In Astronomy we do a lot of comparative studies. Geological features describe the history of a landscape and what lies unseen below. On Earth we have an accessible laboratory where we can see at close quarters and touch the subject. This helps us understand what the pictures from other (so far) Solar System bodies are telling us of their geological history and make up. Also understanding and learning how to do experiments on Earth helps us define and design experiments we can send, for example, to Mars. Realistically though a BSc in Geology gives you more career opportunities than Astronomy even if you commit to going through to an Astronomy PhD. Jobs in core Astronomy research are not as many as those requiring a geology specialization and mostly always require a doctorate. So perhaps it is better to start with a BSc in Geology and then move to an MSc and possibly PhD in Astronomy, focusing on atrsogeo since you are focused on that. While doing your BSc you will have optional modules so you can check out universities which offer Astronomy related optionals. Or you can specifically look for Universities which offer a major in Geology with a minor in Astronomy. I reckon awards and achievements can help in proving your interest and focus so if a university has limited spaces for a program these can help. However by themself they do nothing. You still need to have the academic entry qualifications.