First broadcast: on BBC FourLatest broadcast: on BBC Four HD
The team go in search of the potential causes of the Star of Bethlehem. The list of candidates includes supernovae, comets, meteors and unusual alignments of the giant planets. Show more
First broadcast: on BBC FourLatest broadcast: on BBC Four HD
The team travel to La Palma in the Canary Islands where they take control of some of the world's largest telescopes to view the sky's most spectacular sights. Show more