It took more than 300,000 years after the Big Bang for the material in the universe to cool sufficiently for atoms to form.

The heat from the Big Bang is still warming parts of the universe today.

When it was first propounded by early astronomers, one of the earliest names for the Big Bang Theory was the Cosmic Egg Hypothesis.

Neutron stars are so dense that one teaspoonful of their matter would weigh more than every person on Earth combined.

The Sun loses one billion kilos of matter every single second.

A deep space phenomenon called a gamma-ray burst, or GRB, releases more energy in a few seconds than our Sun will in its entire lifetime.

Neptune was discovered in 1846, but it takes the planet 165 years to finish a single orbit of the Sun. It has only completed one entire orbit in all the time we have known about it.

There are starts in the universe that we will never be able to see.

The Sun accounts for 99% of all the mass in our solar system.