Alexander the Great transformed the world during his reign — but was he an embattled leader, or a ruthless conqueror?

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Alexander the Great fundamentally transformed the world during his 13-year reign. He conquered Persia when it was one of the world’s…

Correction:
1:15 The graph has mislabeled trend lines. "Other renewables" generate more energy than hydropower alone.

For decades, rising carbon emissions have accelerated climate change, but this year marked a critical turning point that could finally reverse…

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The great debate…

Support for this episode was contributed by the Translational Research Institute for Space Health at Baylor College of Medicine. TRISH is an applied health research catalyst that funds high-impact scientific studies and technologies to keep astronauts healthy…

If the promise of a tasty meal makes you want to jump for joy, you may relate to the loggerhead turtle. These animals have an uncontrollable urge to dance wh...

Find out how the Ri and 2016 Christmas Lecturer Saiful Islam made the world's biggest lemon battery, using over 1,000 lemons, and getting into the Guiness Book of Records.

Watch the full 2016 lectures here: https://www.rigb.org/explore-science/explore…

In her first lecture, Dr Susan Greenfield introduces us to the human brain, how it works, and how electricity and chemicals shape what we do and feel.

Watch all the lectures in this series here: https://www.youtube.com/playlist?list=PLbnrZHfNEDZxB8thM5bFRFwY5BVIBtM_O…

In her second lecture, Dr Susan Greenfield studies the history of the brain - and the modern techniques we can use to study how it really works.

Watch all the lectures in this series here: https://www.youtube.com/playlist?list=PLbnrZHfNEDZxB8thM5bFRFwY5BVIBtM_O…

In her third lecture, Dr Susan Greenfield asks if the brain works like a computer, or a bubbling cauldron of chemicals, and considers how nerve signals actually work.

Watch all the lectures in this series here: https://www.youtube.com/playlist?list=PLbn…

In her fourth lecture, Dr Susan Greenfield explains the lifecycle of the brain and its neurons, starting with the growth of the brain, and how the environment shapes it, and how our brains are constantly evolving.

Watch all the lectures in this series here:…

In her fifth and final lecture, Dr Susan Greenfield asks if we all have the same basic brain, what makes us individuals?

Watch all the lectures in this series here: https://www.youtube.com/playlist?list=PLbnrZHfNEDZxB8thM5bFRFwY5BVIBtM_O
Watch our newest…

Aboard the International Space Station, NASA astronauts Mike Fincke, Zena Cardman, and Chris Williams, along with JAXA (Japan Aerospace Exploration Agency) astronaut Kimiya Yui, wish a merry Christmas and a happy holiday season to Earth in a message recorded…

Archaeologists find evidence that a wave of mass brutality accompanied the collapse of the first pan-European culture.Read more: https://scim.ag/4p6y1NCCREDI...

There's a series of underground structures in the Bahamas that bears a striking resemblance to the fabled Atlantis. And while these concretions aren't the remnants of a lost city, we do know that studying how they formed can give us insights into ocean currents…

While these concretions aren’t the remnants of a lost city, we do know that studying how they formed can give us insights into ocean currents, climate change...

Earth's atmosphere was initially rich in hydrogen 🌍 Carl Sagan explained why that changed during his legendary 1977 Christmas Lectures.For more out-of-this-...

Professional musicians share how they chose their instruments, and what you should consider when choosing what to play.

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"Think Like A Musician" connects you with working musicians who want to help the music-curious and music-passionate hone and share…

In ocean trenches 9000m below the surface of the Pacific an unexpected variety of life has been discovered. The ecosystem here depends on bacteria who can ge...

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Antonie van Leeuwenhoek is the father of microbiology and the first person to have observed bacteria. Which he should not have been able to do, but did anyway. Here's why the discovery of bacteria…