- Stuart Clark
When the clipper ship Southern Cross sailed into a living hell off Chile during the night of 2 September 1859, little did the sailors know that they were witnessing the aftermath of a gigantic solar explosion that had engulfed the Earth. Today, astronomers are still unpicking the consequences of this tremendous event.
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- Robinson Fulweiler
Climate change has been blamed with altering the environment – from animal migrations to sea level. Now it's also affecting nutrient cycling. Excess nitrogen discharged into estuaries used to be removed by a bacterial process in the sediments. But recent research shows a dramatic change...
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- Thomas Häusler
Bacteriophages were big business before penicillin and other antimicrobials appeared on the scene. But now, with increasing bacterial resistance and the rise of the "superbug", phages are once more centre-stage in the war on microbes...
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- Chris Smith
What is a thunderstorm, how is lightning generated by clouds, how much energy is there in a lightning bolt, and could it be harnessed to power a town?
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- Chris Muirhead
Superconductors are amazing materials whose resistance drops to zero when cooled. Chris looks at how they can be used to detect Pulsars, receive mobile messages, and make trains levitate.
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- Sarah Urquhart
A period, or menstruation, marks the beginning of the process by which the uterus, or womb, prepares itself for pregnancy. Sarah has a look at the process and what can go wrong including missed or late periods, intermenstrual bleeding, heavy periods, painful periods, pre-menstrual syndrome (PMS), and the menopause.
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- Stephanie Modi
The lymphatic system is your body's drainage system. It collects the excess fluid that surrounds cells and returns it to the bloodstream, picks up fats from the intestines and primes the immune system about pathogens...
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- Lucy Sandbach
As the world focuses on carbon dioxide, are more dangerous agents of global warming creeping up unnoticed? Lucy Sandbach investigates the dark world of nitrogen and how this common element is causing havoc with the environment.
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- Alexandra Lindsay
Scheele was the first to isolate Hydrogen cyanide in 1782 then went on to show its toxic effects by accidentally becoming its victim. Alexandra looks at why cyanide is poisonous, causes of cyanide poisoning, and how to reverse its effects.
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- Paraminder Dhillon
Humans are one of the most formidable species on Earth. How have modern Homo sapiens come to reign over their archaic forebears, in the course of hominid evolution?
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