Quantum Cosmology is a highly speculative field, as it deals with conditions not currently testable, but it is considered essential for a complete understanding of gravity at the quantum scale.

Quantum Cosmology is the study of the universe as a quantum system — an attempt to apply the principles of quantum mechanics, which govern atoms and particles, to the entire cosmos.

Quantum Physics is the study of matter and energy at the most fundamental level. It aims to uncover the properties and behaviors of the very building blocks of nature.

Quantum Mechanics is the branch of physics that describes how very small objects, like electrons, can behave both as waves, which transfer energy through a disturbance, and as particles, which are tiny pieces of matter. This dual behavior is known as wave-particle duality.

Quantum Physics is the study of matter and energy at the most fundamental level. It aims to uncover the properties and behaviors of the very building blocks of nature.

Science is the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.