Spectacular timelapse of the Milky Way galaxy and a phenomenon known as airglow seen from the International Space Station.

In 1926, Edwin Hubble published his pioneering work on the classification of extragalactic nebulae, now understood as galaxies, laying the foundation for the modern Hubble sequence. He showed that galaxies are not uniform but come in distinct forms such as elliptical, spiral, and irregular types, each reflecting different histories of formation and evolution. Later refinements added the lenticular class, completing a framework that links galactic structure to processes like mergers, star formati

A mesmerizing timelapse capturing sunset and the Milky Way galaxy rising over the Grand Canyon.📽: Bristlecone Media