All articles tagged with #oldest star
The Methuselah star (HD 140283), located about 200 light-years away, is the oldest known star in the universe with an estimated age between 11.5 and 14.5 billion years, closely aligning with the universe's age of approximately 13.8 billion years, thus supporting current cosmological models.
Astronomers have discovered a new type of star, known as "old smokers," near the center of the Milky Way galaxy after a 10-year study. These stars, which were once hidden, go dormant for decades before ejecting clouds of dust and smoke. Using infrared light, astronomers observed these stars for the first time, with 222 showing discernible variations in brightness, 32 of which were young stars. The discovery may provide insights into the distribution of elements throughout the cosmos.