Nature Podcast23 Mar 2022

Milky Way's origin story revealed by 250,000 stars

In this episode:

00:45 Accurately ageing stars reveals the Milky Way’s history

To understand when, and how, the Milky Way formed, researchers need to know when its stars were born. This week, a team of astronomers have precisely aged nearly a quarter of a million stars, revealing more about the sequence of events that took place as our galaxy formed.

Research article: Xiang and Rix

News and Views: A stellar clock reveals the assembly history of the Milky Way

09:53 Research Highlights

Archaeologists reveal an ancient lake was actually a ritual pool, and how the Moon’s phase affects some birds' altitude.

Research Highlight: Ancient ‘harbour’ revealed to be part of fertility god’s lavish shrine

Research Highlight: These birds fly high when the full Moon hangs in the sky

12:34 Uncovering Yellowstone’s hot water plumbing

Yellowstone National Park’s iconic geothermal geysers and volcanic landmarks are well studied, but very little was known about the ‘plumbing system’ that feeds these features. Now a team of researchers have mapped the underground hydrothermal system, showing the specific faults and pathways that supply the park.

Research article: Finn et al.

19:27 Briefing Chat

We discuss some highlights from the Nature Briefing. This time, 0why an Australian university has been suspended from winning a research foundation’s fellowships, and the ongoing debate about the cause of ‘COVID toes’.

Nature: Funder bars university from grant programme over white-male award line-up

Nature: Are ‘COVID toes’ actually caused by the coronavirus?

Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.

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Episoder(912)

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What counts as a moon? Huge ‘exosatellite’ sparks debate

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22 Jul 0s

Briefing Chat: Sweet! Elusive sugar molecules found in space

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17 Jul 9min

‘Holy grail’ of naked mole-rat research reveals how queens rule

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15 Jul 22min

Briefing Chat: The 30 year-legacy of a science icon – Dolly the sheep

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10 Jul 10min

Nukes in space? Orbital detector could sniff out warheads

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8 Jul 25min

Togetherness: How co-operation built the world

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1 Jul 31min

Audio long read: Is the peptide craze backed by science? The promise behind the hype

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29 Jun 16min