The Sky at Night

Orion, the Hunter

1975-01-06

The New Northern Hemisphere Laboratory

1975-02-06

Algol: The Winking Demon

1975-03-05

Astronomy of The Infra-Red

1975-04-10

The Outer Planets

1975-04-30

The Mysterious X-rays

1975-05-30

The Hot Clouds of the Sun

1975-07-01

The New Moon

1975-07-28

The Galilean Satellites

1975-08-28

The Origin of the Universe

1975-09-23

New Star in Cygnus

1975-10-22

The Rocks on Venus

1975-11-12