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James Webb Space Telescope

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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.

2022 in Review

The Year in Physics

By Natalie Wolchover
December 22, 2022
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In a year filled with sweet new observations in astronomy and tantalizing breakthroughs in condensed matter physics, the brand-new space telescope takes the cake.

Lisa Kaltenegger, a woman with red hair, peers through the eyepiece of an antique telescope.
astrobiology

A Dream of Discovering Alien Life Finds New Hope

By Joshua Sokol
November 3, 2022
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For Lisa Kaltenegger and her generation of exoplanet astronomers, decades of planning have set the stage for an epochal detection.

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.

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.

2021 in Review

The Year in Physics

By Michael Moyer
December 22, 2021
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Puzzling particles, quirky (and controversial) quantum computers, and one of the most ambitious science experiments in history marked the year’s milestones.

Collage illustration of the JWST
astrophysics

The Webb Space Telescope Will Rewrite Cosmic History. If It Works.

By Natalie Wolchover
December 3, 2021
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The James Webb Space Telescope has the potential to rewrite the history of the cosmos and reshape humanity’s position within it. But first, a lot of things have to work just right.

Q&A

The Astronomer Who’s About to See the Skies of Other Earths

By Thomas Lewton
October 12, 2021
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After the ultra-powerful James Webb Space Telescope launches later this year, Laura Kreidberg will lead two efforts to check the weather on rocky planets orbiting other stars.

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