The twins climbing Mount Everest for science, and the fractal nature of human bone

The twins climbing Mount Everest for science, and the fractal nature of human bone

To study the biological differences brought on by space travel, NASA sent one twin into space and kept another on Earth in 2015. Now, researchers from that project are trying to replicate that work planet-side to see whether the differences in gene expression were due to extreme stress or were specific to being in space. Sarah Crespi talks with Online News Editor Catherine Matacic about a “control” study using what might be a comparably stressful experience here on Earth: climbing Mount Everest. Catherine also shares a recent study that confirmed what one reddit user posted 5 years ago: A single path stretching from southern Pakistan to northeastern Russia will take you on the longest straight-line journey on Earth, via the ocean. Finally, Sarah talks with Roland Kröger of the University of York in the United Kingdom about his group’s study published this week in Science. Using a combination of techniques usually reserved for materials science, the group explored the nanoscale arrangement of mineral in bone, looking for an explanation of the tissue’s contradictory combination of toughness and hardness. This week’s episode was edited by Podigy. Listen to previous podcasts. [Image: Human bone (20X) by Berkshire Community College Bioscience Image Library; Music: Jeffrey Cook] Learn more about your ad choices. Visit megaphone.fm/adchoices

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Avsnitt(652)

Death in a gene-editing trial, and insect larvae surviving in deep waters

Death in a gene-editing trial, and insect larvae surviving in deep waters

First up on the podcast, freelance science journalist Brendan Borrell talks about his work reporting on the previously undisclosed death of a 6-year-old girl in a gene-editing clinical trial in China ...

23 Juli 0s

Health care in Malawi after USAID’s end, and a rocky exoplanet with an atmosphere

Health care in Malawi after USAID’s end, and a rocky exoplanet with an atmosphere

First up on the podcast, we continue our coverage of the fallout from cuts to the U.S. Agency for International Development (USAID), this time focusing on how one of the largest recipients of aid is c...

16 Juli 41min

Owl wars and the immune system’s memory

Owl wars and the immune system’s memory

First up on the podcast, Contributing Correspondent Warren Cornwall goes on an owl hunt in the woods of Northern California. After surviving logging and habitat destruction in the 1990s, the endangere...

9 Juli 35min

How Antarctica got its ice sheets, and what happens when geopolitical relationships turn chilly in the Arctic

How Antarctica got its ice sheets, and what happens when geopolitical relationships turn chilly in the Arctic

First up on the podcast, relationships turn chilly in the polar research haven of Svalbard in Norway. Senior International Correspondent Richard Stone joins host Sarah Crespi to discuss the impacts of...

2 Juli 32min

Cracking color vision, U.S. science policy changes, and a trailblazing biography

Cracking color vision, U.S. science policy changes, and a trailblazing biography

First up on the podcast, ScienceInsider editor Jocelyn Kaiser joins host Sarah Crespi to discuss big policy stories from the past month, including a proposal from President Donald Trump’s administrati...

25 Juni 45min

An electronic nose that detects spoiled chicken, and wolves make a spectacular comeback in Europe

An electronic nose that detects spoiled chicken, and wolves make a spectacular comeback in Europe

First up on the podcast, wrangling wolves in Europe. After near extermination in much of the continent, wolf numbers have surged up to about 20,000 individuals. Contributing Correspondent Gretchen Vog...

18 Juni 46min

How childhood environments shape the brain, and how susceptible is the Atlantic Ocean’s current to climate change?

How childhood environments shape the brain, and how susceptible is the Atlantic Ocean’s current to climate change?

First up on the podcast, producer Kevin McLean talks with Staff Writer Paul Voosen about the latest on the Atlantic Meridional Overturning Circulation, or AMOC. Researchers have long been concerned th...

11 Juni 31min

Will AI replace astronomers, how healthy are ultraprocessed foods, and a peek behind the scenes of ‘The Normals’

Will AI replace astronomers, how healthy are ultraprocessed foods, and a peek behind the scenes of ‘The Normals’

First up on the podcast, freelance science journalist Joshua Sokol talks about the intense discussion happening in the astrophysics community as artificial intelligence and machine learning become inc...

4 Juni 50min

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