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exoplanets

Latest Articles

astrophysics

Quaking Giants Might Solve the Mysteries of Stellar Magnetism

By Jackson Ryan
August 21, 2023
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In their jiggles and shakes, red giant stars encode a record of the magnetic fields near their cores.

astronomy

Exoplanets Could Help Us Learn How Planets Make Magnetism

By Jonathan O'Callaghan
August 7, 2023
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New observations of a faraway rocky world that might have its own magnetic field could help astronomers understand the seemingly haphazard magnetic fields swaddling our solar system’s planets.

nonlinear dynamics

New Proof Finds the ‘Ultimate Instability’ in a Solar System Model

By Jordana Cepelewicz
May 16, 2023
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For the first time, mathematicians have proved that planetary orbits in a solar system will always be unstable.

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.

Colorful opalized shell of a fossil ammonite.
geology

Life Helps Make Almost Half of Earth’s Minerals

By Joanna Thompson
July 1, 2022
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A new origins-based system for classifying minerals reveals the huge geochemical imprint that life has left on Earth. It could help us identify other worlds with life too.

an illustration of various objects (a chair, a rocket, a cell phone, etc.) as well as biological objects such as a DNA double-helix and microbe, all against a lime green background
The Joy of Why

What Is Life?

By Steven Strogatz
June 15, 2022
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Without a good definition of life, how do we look for it on alien planets? Steven Strogatz speaks with Robert Hazen, a mineralogist and astrobiologist, and Sheref Mansy, a chemist, to learn more.

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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