This is one of the well received science popularisation programmes of BASE and is being conducted since 1999. It is held on the evening of first Sunday of every month in collaboration with Association of Bangalore Amateur Astronomers (ABAA). It introduces the night-sky viewing and also the celestial highlights of the month, and consists of a lecture demonstration inside the sky theatre. Visitors are provided with a sky chart and taught how to read it. The lecture is followed by viewing of the Moon, planets and stars in the open sky through telescopes set up for the purpose.