Category
page 1Cosmic Vision
Jupiter Icy Moons Explorer
mission of the European Space Agency to explore Jupiter’s moons
Solar Orbiter
ESA solar probe
Euclid
ESA space telescope aimed at mapping the distribution of dark matter
Laser Interferometer Space Antenna
third large mission of Cosmic Vision; gravitational-wave space observatory
PLATO
space telescope

CHEOPS
CHEOPS (CHaracterising ExOPlanets Satellite) is a European space telescope. Its objective is to determine the size of known extrasolar planets, which will allow the estimation of their mass, density, composition and their formation. Launched on 18 December 2019, it is the first Small-class mission in ESA's Cosmic Vision science programme. The small satellite features an optical Ritchey–Chrétien telescope with an aperture of 30 cm, mounted on a standard small satellite platform. It was placed into a Sun-synchronous orbit of about 700 km altitude.
Cosmic Vision
third campaign of the European Space Agency Science Programme

EnVision
EnVision is an orbital mission to Venus being developed by the European Space Agency (ESA) that is planned to perform high-resolution radar mapping and atmospheric studies. EnVision is designed to help scientists understand the relationships between its geological activity and the atmosphere, and it will investigate why Venus and Earth took different evolutionary paths. The probe was selected as the fifth medium mission (M5) of ESA's Cosmic Vision programme in June 2021, with launch planned for December 2031. The mission will be conducted in collaboration with NASA.

ARIEL
thumb|305x305px|ESA's exoplanet missions
Ariel (Atmospheric Remote-sensing Infrared Exoplanet Large-survey) is a planned space telescope and the fourth medium-class mission of the European Space Agency's Cosmic Vision programme. The mission is aimed at observing at least 1,000 known exoplanets using the transit method, studying and characterising the planets' chemical composition and thermal structures. Compared to the James Webb Space Telescope, Ariel will be a much smaller telescope with more observing time available for planet characterisation. Ariel was expected to be launched in 2029 aboa
Comet Interceptor
first fast mission of Cosmic Vision; multi-spacecraft reconnaissance of long-period comets or interstellar objects
Solar wind Magnetosphere Ionosphere Link Explorer
joint space mission between European Space Agency and Chinese Academy of Science.
Advanced Telescope for High-Energy Astrophysics
planned X-ray telescope of the European Space Agency, under development for launch around 2028
SPICA
proposed infrared space telescope

EChO
The Exoplanet Characterisation Observatory (EChO) was a proposed space telescope as part of the Cosmic Vision roadmap of the European Space Agency, and competed with four other missions for the M3 slot in the programme. On 19 February 2014 the PLATO mission was selected in place of the other candidates in the programme, including EChO.
THESEUS
Transient High-Energy Sky and Early Universe Surveyor (THESEUS) is a space telescope mission proposal by the European Space Agency that would study gamma-ray bursts and X-rays for investigating the early universe. If developed, the mission would investigate star formation rates and metallicity evolution, as well as studying the sources and physics of reionization.
Marco Polo
proposed space mission to collect material from an asteroid