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What are the chances of finding alien life?

Counting stars and planets with CrowdScience - and goodbye Bola Mosuro.

• 17 mins

The bus boycott that changed Britain

The pioneering black activists behind the Bristol Bus Boycott

• 17 mins

The Netflix show causing its own drama in Egypt

The historical debate that got thousands of you commenting on Facebook

• 17 mins

The last flight out of 'heart attack' airport

More than a million of you engaged with our story about Kai Tak airport in Hong Kong

• 17 mins

Hiking all 63 US national parks - with my granny

Brad and Joy Ryan went on a seven-year adventure and slept under the stars

• 17 mins

The family tree detective bringing relatives together

How Shamshu Deen helped thousands trace their roots. Plus - the woman who feels no pain

• 17 mins

What are Indian audiences talking about online?

Zooming in on India after the country’s worst rail accident this century

• 17 mins

How to visit every country on Earth without flying

Thor Pedersen describes his almost decade-long journey around the world

• 17 mins

Your top tips for the best new African music

DJ Edu and the best new African music that we should all know about

• 17 mins

Swahili travels from Africa to South America

From Nairobi to Bogota, how learning a language has changed your life

• 17 mins

One man's mission to get Nigeria to play the bagpipes

How a teenage dream spurred Chukwu on to lead Nigeria's great bagpipe revival

• 17 mins

Why a Tina Turner song is big news in Australia

Nearly 6,000 people dance in the desert to Nutbush City Limits

• 17 mins

In the saddle with Africa’s new cycling hero

We follow the fortunes of Eritrean cycling star Biniam Girmay

• 17 mins

The man and his dog stranded at sea for two months

How Tim Shaddock and his dog Bella survived months alone in the Pacific Ocean

• 17 mins

Why bells mean so much to Nigeria

What the journey of bells from Italy to sub-Saharan Africa tells us about religion there

• 17 mins

Your favourite stories from the Women's World Cup

The rise of new football nations Jamaica and the Philippines

• 17 mins

The top footballers heading for Saudi Arabia

New podcast What in the World looks at the rise of the Saudi Pro League

• 17 mins

Two pen pals finally meet after 68 years

The pen pal friendships that blossomed into lifelong connections

• 17 mins

Not gonna lie, you love our science shows

Marnie Chesterton chats about the science programmes getting your attention

• 17 mins

The volleyball match with 92,003 spectators

How fans of the Nebraska Cornhuskers and Omaha Mavericks just made sporting history

• 17 mins

Why does the world love crosswords?

Fans and makers of the puzzles share their tips. Plus, why humans can't beat stress.

• 17 mins

What it's like to have a famous wrestler for a dad

Remembering WWF legend the Iron Sheik, through the eyes of his daughter

• 17 mins

Bees should not be able to fly... but they do

What do you know about the Bee Paradox? We break down the science

• 17 mins

The world's first ever cat cafe

How drinking tea surrounded by felines became a global craze

• 17 mins

The man who avoided mirrors

Jono learned to love his own face after years of struggle and bullying

• 17 mins

Why short videos are helping you find our best audio

The digital video storytelling that is guiding you to our radio shows and podcasts

• 17 mins

Kabaddi or squash at the Olympics?

The new sports you would like to see at the Olympic Games

• 17 mins

Taylor Swift and the return of the album

The albums with unskippable tracks - what would you choose?

• 17 mins

What makes a good boss?

Honesty and empathy, knowledge and experience: your take on what makes a great leader

• 17 mins

How a young boy went missing from a painting

Plus, meet the world's oldest primary student who enrolled at the age of 84

• 17 mins