HORSEHEAD NEBULA: A giant red horse seems to rear its head against a background of swirling stars, some still being formed in a stellar nursery. The Horsehead Nebula - also known as Barnard 33 - is 1,375 light years away. The horse's head is in fact dark clouds in front of ultraviolet radiation coming from Sigma Orionis, which is the eastern star on the belt of the Orion constellation. The Horsehead Nebula has been observed before, but the European Space Agency's Euclid telescope is the first to deliver such a complete view in just an hour, thanks to its wide lens. Scientists hope that by scouring through Euclid's observations of the nebula, they will find previously unseen Jupiter-sized planets, as well as stars still in their infancy.
ESA