The last trolleybus in Wales ran in 1970, but councils are now looking to bring back cleaner transport.
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Weather forecasters start using space laser data
Operational weather forecasts have started incorporating novel wind measurements made from orbit.
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Weather forecasters start using space laser data
Operational weather forecasts have started incorporating novel wind measurements made from orbit.

Plant life 'expanding over the Himalayas'
Vegetation is expanding at high altitudes across the Himalayas - including the Everest region.

'Wolf moon' lunar eclipse delights skywatchers
The first full moon of 2020 coincides with a penumbral lunar eclipse, caused by the Earth's shadow.

'Limited time' to fix bright satellites problem
Astronomers say the coming interference from satellite mega-constellations needs rapid solutions.

Turks and Caicos corals face major threat
There is alarm at the speed that stony coral tissue loss disease is killing the Caribbean reef.

UK's chlorine-washed chicken ban 'to remain'
Chicken and hormone-fed beef bans will continue post-Brexit, the environment secretary says.

Nasa Moon rocket core leaves for testing
The first core stage for Nasa's "mega-rocket", the SLS, has left its factory in New Orleans.
Featured Contents

Weather forecasters start using space laser data
Operational weather forecasts have started incorporating novel wind measurements made from orbit.

Plant life 'expanding over the Himalayas'
Vegetation is expanding at high altitudes across the Himalayas - including the Everest region.

'Wolf moon' lunar eclipse delights skywatchers
The first full moon of 2020 coincides with a penumbral lunar eclipse, caused by the Earth's shadow.

'Limited time' to fix bright satellites problem
Astronomers say the coming interference from satellite mega-constellations needs rapid solutions.

Turks and Caicos corals face major threat
There is alarm at the speed that stony coral tissue loss disease is killing the Caribbean reef.

UK's chlorine-washed chicken ban 'to remain'
Chicken and hormone-fed beef bans will continue post-Brexit, the environment secretary says.

Nasa Moon rocket core leaves for testing
The first core stage for Nasa's "mega-rocket", the SLS, has left its factory in New Orleans.

Plant life 'expanding over the Himalayas'
Vegetation is expanding at high altitudes across the Himalayas - including the Everest region.

'Wolf moon' lunar eclipse delights skywatchers
The first full moon of 2020 coincides with a penumbral lunar eclipse, caused by the Earth's shadow.

'Limited time' to fix bright satellites problem
Astronomers say the coming interference from satellite mega-constellations needs rapid solutions.
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Read moreThe first full moon of 2020 coincides with a penumbral lunar eclipse, caused by the Earth's shadow.
Read moreJonathan Amos
BBC Science Correspondent
Operational weather forecasts have started incorporating novel wind measurements made from orbit.
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Read moreNavin Singh Khadka
Environment correspondent, BBC World Service
Vegetation is expanding at high altitudes across the Himalayas - including the Everest region.
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