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Illustration of a glass box illuminated inside by a red lightbulb. A ray of green light shoots out of the box.
quantum physics

Puzzling Quantum Scenario Appears Not to Conserve Energy

By Katie McCormick
May 16, 2022
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By resolving a paradox about light in a box, researchers hope to clarify the concept of energy in quantum theory.

astrophysics

Black Hole Image Reveals the Beast Inside the Milky Way’s Heart

By Jonathan O'Callaghan
May 12, 2022
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In 2019, the Event Horizon Telescope released a historic image of a supermassive black hole in another galaxy. The follow-up — an image of Sagittarius A* — shows it shimmering at the center of our own.

Illustration of pieces of paper with scientific images on them feeding into a machine. A human hand turns a crank, and equations come out of the machine.
algorithms

Powerful ‘Machine Scientists’ Distill the Laws of Physics From Raw Data

By Charlie Wood
May 10, 2022
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Researchers say we’re on the cusp of “GoPro physics,” where a camera can point at an event and an algorithm can identify the underlying physics equation.

Illustration of planets and other objects floating above the deformable sheet of space-time.
The Joy of Why

Where Do Space, Time and Gravity Come From?

By Steven Strogatz
May 4, 2022
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Einstein’s description of curved space-time doesn’t easily mesh with a universe made up of quantum wavefunctions. Theoretical physicist Sean Carroll discusses the quest for quantum gravity with host Steven Strogatz.

An illustration of calipers that look blurry
quantum physics

Physicists Pin Down How Quantum Uncertainty Sharpens Measurements

By Ben Brubaker
May 3, 2022
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Throwing out data seems to make measurements of distances and angles more precise. The reason why has been traced to Heisenberg’s uncertainty principle.

planetary science

Secrets of the Moon’s Permanent Shadows Are Coming to Light

By Jonathan O'Callaghan
April 28, 2022
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Robots are about to venture into the sunless depths of lunar craters to investigate ancient water ice trapped there, while remote studies find hints about how water arrives on rocky worlds.

A man sits at a table in the middle of a wood-paneled library, perusing a large book.
Q&A

Pondering the Bits That Build Space-Time and Brains

By Charlie Wood
April 20, 2022
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Vijay Balasubramanian investigates whether the fabric of the universe might be built from information, and what it means that physicists can even ask such a question.

geophysics

Scientists Unravel How the Tonga Volcano Caused Global Tsunamis

By Robin George Andrews
April 13, 2022
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The Tonga eruption in January was “basically like Krakatoa 2.” This time, geophysicists could explain the tiny tsunamis that cropped up all over the planet, solving a 139-year-old mystery about Tonga’s predecessor.

Illustration in which the particles of the Standard Model are arranged as sections of a circle, but the W boson is too big and doesn’t fit.]
particle physics

Newly Measured Particle Seems Heavy Enough to Break Known Physics

By Charlie Wood
April 7, 2022
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A new analysis of W bosons suggests these particles are significantly heavier than predicted by the Standard Model of particle physics.


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