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astrophysics

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A graphical illustration showing a number of well-known stars in the present-day universe, along with the edge of a far bigger star.
astronomy

Astronomers Say They Have Spotted the Universe’s First Stars

By Jonathan O'Callaghan
January 30, 2023
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Theory has it that “Population III” stars brought light to the cosmos. The James Webb Space Telescope may have just glimpsed them.

A panoramic image of the cosmos shows hundreds of galaxies, including four blobs of light that are magnified and labeled with their corresponding redshifts.
astrophysics

Standard Model of Cosmology Survives a Telescope’s Findings

By Rebecca Boyle
January 20, 2023
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Reports that the James Webb Space Telescope killed the reigning cosmological model turn out to have been exaggerated. But astronomers still have much to learn from distant galaxies glimpsed by Webb.

astrophysics

The Enduring Mystery of the Dragonfly 44 Galaxy

By Lyndie Chiou
November 7, 2022
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A growing catalog of huge but dim galaxies such as Dragonfly 44 is forcing astronomers to invent new theories of galactic evolution.

A bright purple splotch surrounded by concentric purple rings.
astrophysics

Brightest-Ever Space Explosion Reveals Hints of Dark Matter

By Jonathan O'Callaghan
October 26, 2022
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A recent gamma-ray burst known as the BOAT — “brightest of all time” — appears to have produced a high-energy particle that shouldn’t exist. For some, dark matter provides the explanation.

A yellow and orange blob of light appears against a purple grainy background.
astronomy

Webb Space Telescope Snaps Its First Photo of an Exoplanet

By Jonathan O'Callaghan
September 1, 2022
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The grainy image of a “super-Jupiter” is a sign of what’s to come as the telescope’s exoplanet observations ramp up.

An illustration of a blue swirling galaxy inside an amillary sphere. A black hole appears in the center.
black holes

What Drives Galaxies? The Milky Way’s Black Hole May Be the Key.

By Thomas Lewton
August 23, 2022
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Supermassive black holes have come to the fore as engines of galactic evolution, but new observations of the Milky Way and its central hole don’t yet hang together.

Image of a spiral galaxy strewn with ribbons of pink light.]
astronomy

Two Weeks In, the Webb Space Telescope Is Reshaping Astronomy

By Jonathan O'Callaghan
July 25, 2022
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In the days after the mega-telescope started delivering data, astronomers reported new discoveries about galaxies, stars, exoplanets and even Jupiter.

A woman in a white t-shirt is standing in front of a bush of orange roses, gazing to the side.
Q&A

The Astrophysicist Who Sculpts Stars Before They Are Born

By Zack Savitsky
July 20, 2022
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Nia Imara is working to understand the mysterious clouds of gas and dust that collapse into stars.

An array of images of protoplanetary disks with bright suns at the centers surrounded by rings, arcs, filaments and spirals.]
astronomy

Astronomers Reimagine the Making of the Planets

By Rebecca Boyle
June 9, 2022
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Observations of faraway planets have forced a near-total rewrite of the story of how our solar system came to be.


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