Welcome to the CHEOPS website!


Hints of a possible atmosphere around a rocky exoplanet

May 8th, 2024

Researchers using NASA/ESA/CSA James Webb Space Telescope may have detected an atmosphere surroun...

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First ‘glory’ on hellish distant world?

April 5th, 2024

For the first time, potential signs of the rainbow-like ‘glory effect’ have been detected on a pl...

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An astronomical waltz reveals a sextuplet of planets

November 29th, 2023

An international collaboration between astronomers using the CHEOPS and TESS space satellites, in...

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CHEOPS' location

Live position of the CHEOPS satellite

The Mission

This is the official consortium homepage of the CHEOPS mission. CHEOPS is the first S-class mission from ESA and was selected in October 2012. CHEOPS was successfully launched on December 18th 2019.

CHEOPS stands for CHaracterising ExOPlanet Satellite. It is a small photometric observatory which operates in a low Earth orbit to measure transits of exoplanets. See the «Executive Summary» for a short overview.

Most of the content of the menu items «News» and «Media & Outreach» is also available in German and French.

CHEOPS-Children’s Drawings Campaign

Below are 3 of the 2748 drawings that orbit the earth with the CHEOPS satellite.

CHEOPS mission extended (En - De/Fr subtitles)

Picture of the Month

CHEOPS reveals a rugby ball-shaped exoplanet

January 12th, 2022

ESA’s exoplanet mission Cheops has revealed that an exoplanet orbiting its host star within a day...

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