Cosmic Rewrites: Five Discoveries That Revolutionized Modern Astrophysics and Planetary Science
PASADENA — The past five years have delivered an unprecedented explosion of astrophysical discoveries, dismantling long-held theoretical models and expanding our understanding of cosmic origins, exoplanetary chemistry, and space-time dynamics.
1. Cosmic Dawn Redefined by JWST
The James Webb Space Telescope discovered massive, luminous galaxies existing merely 300 million years after the Big Bang, challenging standard hierarchical cosmological models of galaxy formation.
2. Direct Atmospheric Spectroscopy of Exoplanets
Spectroscopic detection of water vapor, carbon dioxide, and methane in exoplanet atmospheres has transformed the search for extraterrestrial biosignatures.
