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astrophysics

Astronomers Dig Up the Stars That Birthed the Milky Way

By Lyndie Chiou
March 28, 2023
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There once was a cosmic seed that sprouted the Milky Way galaxy. Astronomers have discovered its last surviving remnants.

quantum gravity

Wormhole Experiment Called Into Question

By Charlie Wood
March 23, 2023
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Last fall, a team of physicists announced that they had teleported a qubit through a holographic wormhole in a quantum computer. Now another group suggests that’s not quite what happened.

cosmology

Shadows in the Big Bang Afterglow Reveal Invisible Cosmic Structures

By Zack Savitsky
March 13, 2023
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Cosmologists are using secondary signatures from the cosmic microwave background to map the universe’s hidden matter.

A levitating puck of material.
superconductivity

Room-Temperature Superconductor Discovery Meets With Resistance

By Charlie Wood +1 authors
Zack Savitsky
March 8, 2023
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A paper in Nature reports the discovery of a superconductor that operates at room temperatures and near-room pressures. The claim has divided the research community.

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An illustration representing an eye at the center of a black hole, observing a quantum particle outside the black hole.
quantum gravity

Black Holes Will Eventually Destroy All Quantum States, Researchers Argue

By Thomas Lewton
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New calculations suggest that the event horizons around black holes will ‘decohere’ quantum possibilities — even those that are far away.

A drawing of cosmic rays approaching the sun and the sun emitting gamma rays.
astrophysics

Strange Solar Gamma Rays Discovered at Even Higher Energies

By Katie McCormick
February 27, 2023
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There appear to be too many gamma rays coming from the sun. New higher-energy measurements reveal that this excess continues for a bit, then disappears — a cutoff that could help clarify what’s going on.

A shining lightbulb with a cord that’s not plugged in.
quantum physics

Physicists Use Quantum Mechanics to Pull Energy out of Nothing

By Charlie Wood
February 22, 2023
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The quantum energy teleportation protocol was proposed in 2008 and largely ignored. Now two independent experiments have shown that it works.

golden planets look like they're moving through a twisting current
The Joy of Why

How Will the Universe End?

By Steven Strogatz
February 22, 2023
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Big Freeze, Big Rip, Big Crunch, Bounce or vacuum decay? Steven Strogatz speaks with theoretical cosmologist Katie Mack about the five ways that scientists think the universe could come to an end.

The Joy of Why

The Joy of Asking About Infinity, Jellyfish and the End of the Universe

By Polly Stryker
February 9, 2023
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As The Joy of Why podcast returns for a second season, producer Polly Stryker and host Steven Strogatz invite listeners to join them and their brilliant new guests on another voyage of discovery.


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