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astronomy

Quantum Double-Slit Experiment Offers Hope for Earth-Size Telescope

By Thomas Lewton
May 5, 2021
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A new proposal would use quantum hard drives to combine the light of multiple telescopes, letting astronomers create incredibly high-resolution optical images.

An illustration of Isaa Newton looking at a pair of falling apples.a
quantum gravity

How Gravity Is a Double Copy of Other Forces

By Charlie Wood
May 4, 2021
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An enigmatic connection between the forces of nature is allowing physicists to explore gravity’s quantum side.

An illustration of a brain bordered by a network of lymphatic vessels. A door at the back of the brain lets light in.
immunology

A Backdoor Lets the Immune System Monitor the Brain

By Elena Renken
April 28, 2021
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A newfound hub of immune system activity at the back of the brain solves a century-old puzzle.

An illustration of a demon’s face.
explainers

How Maxwell’s Demon Continues to Startle Scientists

By Jonathan O'Callaghan
April 22, 2021
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The thorny thought experiment has been turned into a real experiment — one that physicists use to probe the physics of information.

A drawing of a mouse, with lines representing sensory data rotating 90 degrees to become lines of memory data.
neuroscience

The Brain ‘Rotates’ Memories to Save Them From New Sensations

By Jordana Cepelewicz
April 15, 2021
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Some populations of neurons simultaneously process sensations and memories. New work shows how the brain rotates those representations to prevent interference.

Illustration of a placenta that is a mosaic of different colors, with a connected fetus that is all one color.
genomics

New Genomic Study of Placenta Finds Deep Links to Cancer

By Max Kozlov
April 8, 2021
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A patchwork of genomic differences in the placenta may explain the organ’s “live fast, die young” strategy and its connections to cancer.

planetary science

Iceland’s Eruptions Reveal the Hot History of Mars

By Robin George Andrews
April 6, 2021
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The new volcanic fissures are more otherworldly than they first appear.

A graphic showing that changing any of the digits of 505, 447 turns it into a composite number
prime numbers

Mathematicians Find a New Class of Digitally Delicate Primes

By Steve Nadis
March 30, 2021
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Despite finding no specific examples, researchers have proved the existence of a pervasive kind of prime number so delicate that changing any of its infinite digits renders it composite.

Spheres representing black holes, with small ones on top, large ones on the bottom, and one midsize example in the middle.
astrophysics

Long-Missing Midsize Black Hole Flashes Into View

By Jonathan O'Callaghan
March 29, 2021
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Black holes seemed to come only in sizes small and XXL. A new search strategy has uncovered a black hole of “intermediate” mass, raising hopes of more to come.


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