Science ❯Astrophysics ❯Cosmology
Galaxy Evolution Galaxy Formation Big Bang Metal-Poor Stars Galaxy Clusters Gravitational Lensing Star Formation Planetary Systems Stellar Environments Galactic Evolution Black Hole Growth Element Formation Lyman-α Photons Star Clusters Primordial Black Holes Stellar Evolution
Zhulong, a Milky Way-like galaxy discovered one billion years post-Big Bang, challenges existing theories of galaxy formation.