On May 23, 2024, the European Space Agency released an initial set of images from their Euclid mission. This included an unprecedented image of the region including M78. It showed hundreds of thousands of new objects including sub-stellar sized ones for the first time.
Cyanobacteria produced oxygen gas, but oxygen did not begin to accumulate in the atmosphere until later in the Archean.
Messier 78 (Wikipedia) Messier 78 or M78, also known as NGC 2068, is a reflection nebula in the constellation Orion. It was discovered by Pierre Méchain in 1780 and included by Charles Messier in his catalog of comet-like objects that same year.
