Diwrnod Mewn Hanes: Yn y Gofod

Diwrnod arbennig mewn hanes - Ebrill 12, 1961, diwrnod cyntaf dyn yn y gofod. Dyma lyfr ffeithiau a lluniau am hanes dyn yn glanio ar y lleuad. Addasiad o The First Man in Space (cyfres Days that Changed the World).

Find out about the different space missions and the astronauts who have tried and failed. Read about the different kinds of rockets and spacecrafts used in exploring the Universe. Countdown to blast-off on that famous day in 1961, which sparked the beginning of many space missions.