An explanation for giant ice structures on Pluto, and dismantling the mestizo myth in Latin American genetics.
In this episode:
00:46 The frozen root of Pluto’s polygonal patterns
In 2015, NASA’s New Horizons probe sent back some intriguing images of Pluto. Huge polygonal patterns could be seen on the surface of a nitrogen-ice ice filled basin known as Sputnik Planitia. This week, a team put forward a new theory to explain these perplexing patterns.
Research article: Morison et al.
06:15 Research Highlights
How Pamplona’s bull-running defies the dynamics of crowd motion, and self-healing microbial bio-bricks.
Research Highlight: Running of the bulls tramples the laws of crowd dynamics
Research Highlight: It’s alive! Bio-bricks can signal to others of their kind
09:06 How the mixed-race ‘mestizo’ myth has fostered discrimination
The term 'mestizo' emerged during the colonial period in Latin America to describe a blend of ethnicities – especially between Indigenous peoples and the Spanish colonizers. But this label is a social construct not a well-defined scientific category. Now researchers are challenging the mestizo myth, which they say is harmful and has a troubling influence on science.
Feature: How the mixed-race mestizo myth warped science in Latin America
17:22 Briefing Chat
We discuss some highlights from the Nature Briefing. This time, how interrupted sleep could be a route to creativity, and the development of vaccines to target respiratory syncytial virus.
New Scientist: Interrupting sleep after a few minutes can boost creativity
Nature News: The race to make vaccines for a dangerous respiratory virus
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Alphafold 3.0: the AI protein predictor gets an upgrade
Talking about sex and gender doesn't need to be toxic
Dad's microbiome can affect offsprings' health — in mice
Audio long read: Why loneliness is bad for your health
How gliding marsupials got their 'wings'
Living on Mars would probably suck — here's why
Keys, wallet, phone: the neuroscience behind working memory
The 'ghost roads' driving tropical deforestation
Audio long read: Why are so many young people getting cancer? What the data say
Pregnancy's effect on 'biological' age, polite birds, and the carbon cost of home-grown veg
How climate change is affecting global timekeeping
AI hears hidden X factor in zebra finch love songs
Killer whales have menopause. Now scientists think they know why
These tiny fish combine electric pulses to probe the environment
Could this one-time ‘epigenetic’ treatment control cholesterol?
Audio long read: Chimpanzees are dying from our colds — these scientists are trying to save them
How whales sing without drowning, an anatomical mystery solved
Why are we nice? Altruism's origins are put to the test
Smoking changes your immune system, even years after quitting
Why we need to rethink how we talk about cancer
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