3/6 The isolation of living with HIV in New Zealand.
BBC World Service
Mike visits the moon, watches solar flares, and still finds time to help a rare duck.
3/3 In Egypt scientists are experimenting with high-tech techniques to make the desert bloom.
Angus Stickler examines the safety record of the RAF in recent conflicts.
BBC Radio 4
Mike hears from the moon, talks trees, and looks at the economy versus environment dilemma
1/2 Save our Sounds: Trevor Cox presents the first of two programmes on the urban soundscape.
Cambodia is experiencing an epidemic of so-called land grabbing. Rob Walker reports.
Buzz Aldrin relives the dramatic moments of the final descent to the moon in 1969.
2/6 Islands of Security looks at the impact of South Africa's gated communities.
2/3 Ayisha Yahya explores climate change issues by visiting deserts in Africa.