In a gloomy distant universe, galaxies look like bright fireflies, flickering candles and glowing embers. This image is captured by the Hubble Space Telescope and displays a massive galactic group — the RXC J0032.1 + 1808 cluster.
The image was made on an advanced camera for searches and a wide-angle camera 3 in the framework of the RELICS program, during which 41 massive clusters could be displayed. The brightest distant galaxies will become targets for the future telescope of James Webb.
It is designed for viewing in IR wavelengths, which is useful for observing distant objects. Because of the universe expansion, objects turn red strongly (the light shifts towards the more red part of the spectrum), so IR telescopes are ideal for studying them. Hubble manages to wind off time billions of years ago, but James Webb will succeed in fixing “childish” galaxies.