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Observatories and Instruments

Euclid (spacecraft)

Space-Based Observatories

A European Space Agency space telescope launched in 2023 to map the large-scale distribution of galaxies across roughly a third of the sky in visible and near-infrared light, aiming to probe the nature of dark matter and dark energy through how they shape cosmic structure. Its planned six-year survey is intended to chart billions of galaxies across most of the observable universe's history.

Facts
Observatory Type
wide-angle space telescope 1
Location
halo orbit around the Sun-Earth second Lagrange point L2, about 1.5 million km beyond Earth's orbit 1
Operational
from 2023 1
Measures
dark energy and dark matter, by measuring the accelerating expansion of the universe 1
Operating Principle
combines a visible-light camera with a near-infrared spectrometer and photometer to determine galaxy redshifts 1
Open to Visitors
No 2
Classification
Observing Band
Infrared 1
Observing Band
Optical / Visible 1
Connections

Associated With

Dark Energy, Concepts
Dark Matter, Concepts
Lagrange Points, Concepts
Large-Scale Structure of the Universe, Concepts

Operated By

European Space Agency, Space Agencies and Companies
Source Wikipedia (space and spaceflight articles)
Additional Source Wikipedia: Euclid (spacecraft)Article text
Sources
1. Wikipedia: Euclid (spacecraft)
  • Lead paragraph, sentence 1
    Euclid is a wide-angle space telescope with a 600-megapixel camera to record visible light, a near-infrared spectrometer, and photometer, to determine the redshift of detected galaxies.
  • Lead paragraph, orbit clause
    a halo orbit around the Sun-Earth second Lagrange point L2, at an average distance of 1.5 million kilometres beyond Earth's orbit
  • Launch section
    was launched on 1 July 2023 from Cape Canaveral in Florida
  • Scientific objective section
    The objective of the Euclid mission is to better understand dark energy and dark matter by accurately measuring the accelerating expansion of the universe.
  • Lead paragraph, instrument clause
    a near-infrared spectrometer, and photometer
  • Article text: band optical
    to record visible light, a near-infrared spectrometer
  • Article text: band infrared
    to record visible light, a near-infrared spectrometer
  • Operated By: European Space Agency, Article text
    It was developed by the European Space Agency (ESA) and the Euclid Consortium and was launched on 1 July 2023 from Cape Canaveral in Florida.
  • In Group: Infrared Space Telescopes, Lead sentence
    Euclid is a wide-angle space telescope with a 600-megapixel camera to record visible light, a near-infrared spectrometer, and photometer, to determine the redshift of detected galaxies.
View the Source
2. Euclid (space telescope) (Wikipedia)
Lead paragraph
Quote, Lead paragraph
is a wide-angle space telescope
View the Source
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