Which is a cosmological model stating that the universe started its expansion about 13.8 billion years ago?

Who measured the wavelengths of light from spiral nebulae, which are interstellar clouds of dust and ionized gases in 1910s?

Who used the redshift of light from galaxies to calculate the velocities and distances of these galaxies from the Earth in 1929?

Which are the remains of energy created after the big bang expansion?

Which is the process of producing the light elements during the big bang expansion?

Which element is NOT formed in the big bang nucleosynthesis?

Which is the name of the missing element in the figure below?

Which is the process by which elements are formed within stars?

Which is a star that blows apart and releases a large amount of energy?

Up to which element can a low mass star like the Sun form through nuclear fusion reactions?

Which acts as a catalyst for the CNO cycle?

In Neutron Capture, which happens when there is a small number of neutrons?

Which process is primarily involved in the equation below that features the addition of a proton to a seed nucleus?

Which process is primarily involved in the equation below that features the addition of neutrons to a seed nucleus?