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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15 February 2018: Optical clocks, healthy ageing, and fieldwork during pregnancy
08 February 2018: Tough timber, magpie intelligence, and invasive crayfish
01 February 2018: Stone Age tools in India, and coral reefs in crisis
25 January 2018: Tiny robots, 3D images, and a honeycomb maze
18 January 2018: Climate sensitivity, and the fetal microbiome
10 January 2018: Conflict conservation, and the shape of a memory
Backchat December 2017: Trump, physics, and uncited papers
21 December 2017: Earth AI, a news quiz, and sci-fi
14 December 2017: Volcanoes, viruses & electric eels
7 December 2017: Exoplanet geology & duck-like dinosaurs
30 November 2017: Unnatural DNA & worm mothers
23 November 2017: Sleep deprivation & radioactive lightning
16 November 2017: Ancient inequality & bacterial communication
9 November 2017: Axolotls & treating a genetic skin condition
2 November 2017: Evolving verbs & Earth's microbiome
26 October 2017: Undead cells & Antarctic instability
19 October 2017: Neutron star gravitational waves & the future of work
12 October 2017: A dwarf planet & DNA sequencing
Nature Extra: 500th show compilation
Nature Podcast: 5 October 2017
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