The Universe begins in a huge expansion.
Hundreds of planets have been found orbiting other stars.
In 1987 astronomers observed an exploding star near our galaxy.
Hoyle puts forward an alternative to the Big Bang.
Kitt Peak is the national observatory of the United States.
Professor Brian Cox and other experts explain the mysteries of the Universe.
Sir Patrick Moore looks back on over 50 years of The Sky at Night.
Experts explain what you can see in the night sky during the autumn.
You can see interesting things in the night sky during the spring and summer.
Find out what you can see in the night sky during the winter months.