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exoplanets

A wide variety of Kepler exoplanets
Posted inFeatures

The Kepler Revolution

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 1 August 201817 January 2023

The Kepler Space Telescope will soon run out of fuel and end its mission. Here are nine fundamental discoveries about planets aided by Kepler in the 9 years since its launch.

The TRAPPIST-1 exoplanet system as it might look like from a vantage point near the planet TRAPPIST-1f (at right)
Posted inAGU News

AGU and AAS Join Forces to Foster Understanding of Exoplanets

by J. Speiser 13 July 201810 April 2023

Enhanced cooperation between organizations representing astronomers and Earth and space scientists will build upon interdisplinary work already bridging geophysics and astronomy.

Artist’s conception of TESS, with a hypothetical lava planet and its host star in the background.
Posted inNews

Exoplanet-Hunting Telescope Launches

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 19 April 201810 April 2023

Scanning for traces of faraway worlds, TESS will make observations over an area hundreds of times larger than that observed by its predecessor, the Kepler Space Telescope.

Artist's conception of the K2-138 exoplanet system
Posted inNews

Looking to the Future of Exoplanet Science

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 24 January 201810 April 2023

Upcoming missions seeking to unravel the secrets of exoplanets abound. An informal survey of astronomers revealed which of those projects they most eagerly await.

An artist’s rendering of a Neptune-sized exoplanet.
Posted inNews

Ten Earth-Sized Planets Found by Exoplanet-Hunting Telescope

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 22 June 201719 April 2023

A new analysis of exoplanet candidates also reveals a previously unrecognized tendency for smaller exoplanets to grow into two distinct sizes.

Researchers look at silicon carbide under heat and pressure to better understand its behavior in a planet mantle
Posted inResearch Spotlights

Lab Tests Probe Carbon Planets’ Inner Dynamics

by Terri Cook 15 June 201730 September 2021

Thermal convection in deep interiors could be more vigorous in carbide planets than in comparably sized silicate planets, according to new high-pressure measurements of silicon carbide.

KELT-9, Hot exoplanet
Posted inNews

Meet KELT-9b, the Hottest Exoplanet Ever Discovered

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 5 June 201719 April 2023

The exoplanet’s host star blasts it with so much radiation that it will someday evaporate.

An artist’s representation of SIMP0136.
Posted inNews

Starlike Brown Dwarf? Not Anymore

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 17 May 201719 April 2023

Because of a new, surprisingly smaller mass estimate for a much-studied, nearby brown dwarf, astronomers now regard the familiar object as merely planetlike.

An artist’s impression shows the view from the surface of one of the seven worlds that circle the cool dwarf star TRAPPIST-1.
Posted inNews

A New Theory May Explain “Impossible” TRAPPIST-1 Planets

Shannon Hall by S. Hall 12 May 201719 April 2023

The proposed formation scenario relies on unconventional processes to account for a bevy of seven Earth-sized exoplanets recently found orbiting an unlikely star.

Posted inEditors' Vox

Imagining a Different Earth

by A. Dombard 10 March 201721 September 2022

Data will be critical to start to answer whether the newly found TRAPPIST-1 worlds are truly Earth-like.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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