Friday, March 31, 2023

How a DNA ‘Parasite’ May Have Fragmented Our Genes

Math and Science News from Quanta Magazine
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GENOMICS | ALL TOPICS

 

How a DNA 'Parasite' May Have Fragmented Our Genes

By JAKE BUEHLER

A novel type of "jumping gene" may explain why the genomes of complex cells aren't all equally stuffed with noncoding sequences.

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ASTROPHYSICS

 

Astronomers Dig Up the Stars That Birthed the Milky Way

By LYNDIE CHIOU

There once was a cosmic seed that sprouted the Milky Way galaxy. Astronomers have discovered its last surviving remnants.

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Related: 
What Astronomers Are Learning
From Gaia's New Milky Way Map

By Natalie Wolchover (2018)

Q&A

 

Emmy Murphy Is a Geometer Who Finds Beauty in Flexibility

By ERICA KLARREICH

The prize-winning mathematician feels most fulfilled when exploring the fertile ground where constraint meets creation.

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Related: 
How Physics Found a Geometric
Structure for Math to Play With

By Kevin Hartnett (2020)

QUANTIZED COLUMNS

 

The Colorful Problem That Has Long Frustrated Mathematicians

By DAVID S. RICHESON

The four-color problem is simple to explain, but its complex proof continues to be both celebrated and despised.

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QUANTA SCIENCE PODCAST

 

New Chip Expands the Possibilities for AI

Podcast hosted by SUSAN VALOT;
Story by ALLISON WHITTEN

Chips that run on an analog spectrum of memory rather than 0s and 1s could transform energy-efficient AI.

Listen to the podcast

Read the article

Around the Web

Squid Game
Researchers are trying to endow human cells with the amazing camouflage and color-changing properties of squids' skin cells, reports Jennifer Ouellette for Ars Technica. Squids' chameleon-like abilities rely on their control over the microstructures that specialized cells in their skin create. In 2021, Viviane Callier wrote for Quanta about how living things often use diffraction to alter their colors.


Slow Stability
Last year, the mathematician Elena Giorgi posted a 900-page proof that slowly rotating black holes are stable. Rachel Crowell writes about the proof and Giorgi's broader research interests for Science News. In their proof, Giorgi and her colleagues considered what would happen if a rotating black hole were struck by gravitational waves. Steve Nadis explained their proof by contradiction for Quanta last August.
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