The Oldest Star in the Universe

The video explores the fascinating case of the Methuselah star, HD 140283, which initially appeared to be older than the universe itself. Through observations and recalculations, astronomers discovered that the star's age was overestimated due to its unique galactic history and composition. The star originated from a smaller galaxy that merged with the Milky Way, affecting its speed and orbit. The Hubble Space Telescope provided more accurate data, adjusting the star's age to a plausible 14.5 billion years. This case highlights the complexities of star formation and aging, offering insights into the early universe.

Reflect on the implications of discovering that HD 140283 is not older than the universe. What does this mean for our understanding of cosmic history?

What does the existence of the Methuselah star tell us about the formation of stars in the universe?