• No entry once a show starts, and no refund if you miss it, so buy tickets at the Navy Museum box office 30 minutes ahead (15 minutes for the 10am weekday show)
• Each show has its own age band: Captain Schnuppes for 3 to 10, Heroes and Marbles in the Sky for 6 to 11, and galaxy shows for 12 and up
• Mostly in Portuguese, with English sessions on set dates listed on the official sessions page

The Portuguese Navy's planetarium sits beside the Navy Museum and Jerónimos Monastery in Belém. Its 25-meter dome turns into a night sky when the Carl Zeiss projector fills it with stars, planets and nebulae, and some shows are led live by a presenter.

Younger kids get animated stories like Captain Schnuppes. Older kids get shows on the Sun, galaxies and how sailors once navigated by the stars.