Hubble finds something about the Milky Way's core just doesn't add up
Yahoo • • science
Key Points:
- NASA's Hubble Space Telescope is conducting a massive survey of the Milky Way's central bulge, challenging the long-held belief that this region is an ancient stellar graveyard formed around 10 billion years ago.
- New findings suggest that a significant number of stars in the galactic center may be younger, between 5 to 8 billion years old, indicating continued development of the Milky Way's core over time.
- The survey aims to catalog 20 to 30 million objects in this densely packed region, providing one of the sharpest wide-area views of the galaxy's core despite challenges from dust clouds and overlapping star images.
- This Hubble program supports the upcoming Nancy Grace Roman Space Telescope mission, which will use gravitational microlensing to detect planets and other objects by monitoring changes in starlight in the same region.
- By combining Hubble's early high-resolution images with future Roman observations, astronomers hope to precisely track star movements, map interstellar dust, and identify faint or hidden objects, enhancing understanding of the Milky Way’s formation and evolution.