The Priyadarshini Planetarium is situated within the Kerala State Science and Technology Museum premises in Thiruvananthapuram. It is one of the most sophisticated and versatile planetariums in India. The marvellous planetarium complex has a centrally air-conditioned sky theatre, conference hall, workshops and a sound-studio.

The planetarium, rated as one of the best horizontal domed planetariums by global standards, has a seating capacity of 184 persons. The planetarium organises various science-related shows, the best example being – “Man and the Universe", which deals with the origin and different stages of development of astronomy, the structure of different planets and the origin of the Universe.

The museum park at the planetarium premises has numerous outdoor exhibits which include models of rockets and aeroplanes.

Timings of the Planetarium shows:
Malayalam: 10:30 am, 3:00 pm and 5:00 pm English : 12 Noon

Ticket Rates: Adults -Rs 15 Children (3-10 yrs) and authorised batches of students with teachers - Rs 10