Astronomy includes both the theory and observation of celestial objects in the sky. Studies may require physics courses and some programs may teach students how to use telescopes, star charts, and special computer software. A student interested in using creative thinking and problem-solving may enjoy studying this topic.

Requirements for the PhD program often involve the student having already obtained a Master’s degree. Additionally, a thesis or dissertation primarily consisting of original academic research must be submitted. In some countries, this work may even need to be defended in front of a panel.

Online learning refers to use of electronic media and information and communication technologies (ICT) in education. With online learning one has the flexibility to access their studies at any time and from anywhere they can log on.