Electromagnetic radiation refers to the waves of electric and magnetic fields that propagate through space.

The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their corresponding wavelengths and energies.

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.

Gamma Ray is a German power metal band formed in 1989 by Kai Hansen.

The Herschel Space Observatory was a space observatory built and operated by the European Space Agency (ESA).

Infrared is a type of electromagnetic radiation, which lies beyond the visible spectrum of light.

The Infrared Space Observatory (ISO) was a space telescope for infrared light designed and operated by the European Space Agency (ESA), in cooperation with ISAS (now part of JAXA) and NASA.

The James Webb Space Telescope (JWST) is a large, space-based observatory set to launch in late 2021.