NASA | Astronomers Uncover a Surprising Trend in Galaxy Evolution

The video explores the evolution of disk galaxies, challenging previous beliefs that they reached their current state billions of years ago. Led by Susan Kassin at NASA, the study reveals that galaxies have become more ordered over time, spinning faster and reducing disordered motions. The research utilized data from the Keck and Hubble telescopes, highlighting the role of galaxy mass in organization. The study suggests that past galaxy disorder was due to material bombardment, which has decreased over time. Future observations with the James Webb Space Telescope are expected to provide further insights. This new understanding of galaxy evolution includes the period of the solar system's formation and the origin of life on Earth.

What surprising finding did the study led by Susan Kassin reveal about the evolution of disk galaxies over time?

How did the characteristics of disk galaxies change over the past 8 billion years according to the study?

What role does the mass of a galaxy play in its organization according to the findings?

What factors contributed to the disordered state of galaxies in the past as mentioned in the study?

What future observations are needed to gain a better understanding of galaxy evolution?