Nature Podcast1 Maalis 2023

How an increased heart rate could induce anxiety in mice

00:47 How a racing heart could trigger anxiety

Anxiety can make the heart beat faster, but could the reverse be true as well? That question has been much debated, but hard to test. Now, a team has shown that artificially increasing a mouse’s heart rate can induce anxiety-like behaviours, and identified an area in the brain that appears to be a key mediator of this response. They hope that this knowledge could help to improve therapies for treating anxiety-related conditions in the future.

Research article: Hsueh et al.

News & Views: How an anxious heart talks to the brain

08:32 Research Highlights

The chance discovery of the smallest rock seen so far in the Solar System, and the first brain recording from a freely swimming octopus.

Research Highlight: Asteroid photobombs JWST practice shots

Research Highlight: How to measure the brain of an octopus

10:57 How NASA’s DART mission beat expectiations

In September 2022, NASA’s DART spacecraft smashed into a space rock known as Dimorphos, which orbits a near-Earth asteroid. The aim of the mission was to test whether asteroids could be redirected as a method to protect Earth against future impacts. This week, multiple papers have been published describing what researchers have learnt about the impact and its aftermath. Reporter Alex Witze joined us to round up the findings.

News: Asteroid lost 1 million kilograms after collision with DART spacecraft

Research article: Thomas et al.

Research article: Daly et al.

Research article: Li et al.

Research article: Cheng et al.

Research article: Graykowski et al.

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Briefing Chat: The Bunsen burner myth that turns out to be just hot air

Nature staff discuss an AI tool that can assess the impact of nine billion mutations — plus, how the Bunsen burner’s reputation for sterilization may be based on tradition alone.00:21 Deepmind’s new t...

11 Syys 15min

Phone tutoring boosts math scores when schools are forced to close

In this episode:00:46 How telephone teaching could boost education during school shutdownsNature: Pick up the phone! Phone calls with tutors keep kids learning when schools shut down11:42 Research Hig...

9 Syys 21min

Briefing Chat: How 1,000 pairs of buried underpants helped measure soil health

In this episode:00:21 Our picks of this year’s Ig Nobel prizesNature: Buried underpants and a new definition of kissing win 2026 Ig Nobel prizes07:47 Massive xenon experiment detects tantalizing hint ...

4 Syys 12min

Audio long read: Could mending damaged DNA prolong life?

Scientists are amassing evidence that unrepaired or poorly repaired DNA damage underlies many of the hallmarks of ageing. This has led to research into whether boosting DNA repair can keep people heal...

2 Syys 18min

Briefing Chat: How Dolly Parton left her mark on science

In this episode:00:18 Researchers celebrate Dolly Parton's contributions to scienceNature: Dolly Parton dies aged 80 — researchers celebrate her contributions to science08:40 Phase III trial of melano...

28 Elo 14min

Highest-ever ocean temperatures recorded as El Niño intensifies

Why extreme temperatures are expected to weaken ocean carbon sinks — plus, how mitochondrial injections could treat vision loss.00:46 The world’s oceans reach a record temperatureNature: Ocean tempera...

26 Elo 19min

Briefing Chat: New narcolepsy drug could unlock host of novel brain therapies

Nature staff discuss how an FDA-approved drug for narcolepsy could have promise beyond the condition, and the longest-lived human brain organoids yet.00:28 The promise of a new narcolepsy drugNature: ...

21 Elo 12min

A black hole's spin could finally be measured by a high-speed star

Star orbiting close to Sagittarius A* could reveal its spin — plus, how exoskeletons might change the way humans move.00:46 The star that could reveal a black hole’s spinResearch article: Dayem et al....

19 Elo 29min