Species-Ending Asteroids, Air Into Electricity, Female Mice

Curiosity Weekly

Warner Bros. Discovery

Self-improvement, Science, Astronomy, Education

4.6 • 935 Ratings

🗓️ 26 April 2023

⏱️ 14 minutes

🔗️ Recording | iTunes | RSS

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Summary

Today you’ll learn about controversial research by NASA suggesting that extinction-level asteroids may have hit Earth more often than we thought, how scientists are working to create electricity out of thin air, and the effects of using exclusively male mice in scientific research.

Species-Ending Asteroids

“Species-Ending Asteroids Hit Earth More Often Than We Realized, NASA Research Suggests.” by Sarah Wells. 2023.
- https://www.vice.com/en/article/7kxpag/species-ending-asteroids-hit-earth-more-often-that-we-realized-nasa-research-suggests
“REASSESSING THE PAST MILLION YEARS OF NEO IMPACT CRATERING ON EARTH VIA HIGH RESOLUTION DIGITAL TOPOGRAPHY.” by J.B. Garvin, et al. 2023.
- https://www.hou.usra.edu/meetings/lpsc2023/pdf/2608.pdf
“Dr. James B Garvin.” Bio. n.d.
- https://science.gsfc.nasa.gov/sed/bio/james.b.garvin

Air Into Electricity

“Newly discovered enzyme that turns air into electricity, providing a new clean source of energy” by Monash University
- https://phys.org/news/2023-03-newly-enzyme-air-electricity-source.html
“Structural basis for bacterial energy extraction from atmospheric hydrogen” by Rhys Grinter et al.
- https://www.nature.com/articles/s41586-023-05781-7
“The enzyme that could help make energy dreams come true” by Rhys Grinter, Ashleigh Kropp, and Chris Greening
- https://lens.monash.edu/@medicine-health/2023/03/09/1385541/the-enzyme-that-could-help-make-energy-dreams-come-true

Female Mice

“The Case for Female Mice in Neuroscience Research.” by Catherine Caruso. 2023
- https://hms.harvard.edu/news/case-female-mice-neuroscience-research
“Considering sex as a biological variable will require a global shift in science culture.” by Rebecca M. Shansky & Anne Z. Murphy. 2021.
- https://www.nature.com/articles/s41593-021-00806-8
“Sex bias in neuroscience and biomedical research.” by Annaliese K. Beery & Irving Zucker. 2011.
- https://www.sciencedirect.com/science/article/abs/pii/S0149763410001156?via%3Dihub

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Transcript

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0:00.0	Hi, you're about to get smarter in just a few minutes with Curiosity Daily from Discovery.
0:09.0	Time flies when you're learning super cool stuff.
0:11.0	I'm Nate.
0:12.0	And I'm Callie. If you're dropping it for the first time
0:13.8	welcome to curiosity where we aim to blow your mind by helping you to grow your mind.
0:17.7	If you're a loyal listener, welcome back. Today you'll learn about controversial research
0:21.8	by NASA suggesting that extinction-level
0:24.0	asteroids may have hit Earth more often than we thought, how scientists are working to
0:28.6	create electricity out of thin air and the effects of using exclusively male mice in scientific research.
0:35.0	Without further ado, let's satisfy some curiosity.
0:38.0	James Garvin, the chief scientist at NASA's Goddard Space Flight Center and a team of researchers have presented findings that suggest that serious asteroid impacts have happened more often and even more recently than we thought.
0:53.0	Oh, good, that's a happy thought.
0:55.0	Well, let's talk about the research and see how you feel.
0:58.0	Uh-huh, all right, sure, go on.
1:01.0	Dr. Garvin and his team looked at four known impact craters in different parts of the world.
1:07.0	They wanted to know if their official measurements were accurate so that they could create higher
1:10.9	resolution maps of the area.
1:12.5	Well, why wouldn't they be accurate? Can't you just aim a satellite at the crater and measure it?
1:17.2	In theory, sure, but in the intervening years between the impact and now, the whole
1:22.1	forests have grown and erosion has happened and you know just things change
1:25.4	so what Dr Garvin was looking for was evidence that the outer rims of these
1:29.6	craters were actually beyond what we can see today.
	...

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