You're about to listen to a BBC podcast, but this is about something else you might enjoy.

My name's Katie Lecky and I'm an assistant commissioner for on demand music on BBC Sounds.

The BBC has an incredible musical heritage and culture and as a music lover, I love being part of that.

With music on sounds, we offer collections and mixes for everything, from workouts to

helping you nod off, boogie in your kitchen, or even just a moment of calm. And they're all

put together by people who know their stuff. So if you want some expertly curated music in your life,

check out BBC Sounds. Welcome to TechLife on the BBC World Service, the programme about technology and how it's

changing the world all around us. I'm Chris Valence and this week we're heading into orbit

with a groundbreaking space mission that will help scientists peer through the densest jungle

canopy to measure the difference

the world's forests are making to climate change. And it's clicked billions of times a day,

but do you know how it started in the first place? We find out why the world gave a big

thumbs up to the like button. And digitising agriculture in Ghana,

how tech is streamlining the growing and selling process for thousands of farmers. Well, we start today in French Guyana, on the edge of the Amazon rainforest,

where the early morning sky was lit up by the launch of a European Space Agency rocket.

Five, four, three, two, one, top, alumage, P120, decolage.

The rocket was carrying the biomass satellite into space.

The first of its kind mission will allow scientists to peer through clouds and dense leafy canopies

to determine the mass of the world's forests.

Vital information if we are to understand how much planet-warming carbon dioxide is locked up in the trunks and branches of the planet's trees.

Biomass is the brainchild of Sean Quigan, a professor at the University of Sheffield in the UK.

The launch was the culmination of 20 years of work for Sean, and in the nervous days just before Liftoff,

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