Cosmic Dawn ✧ (EXTENDED)

Understanding Cosmic Dawn - NASA Scientific Visualization Studio

In cosmology, the is the era roughly 50 million to 1 billion years after the Big Bang when the first light-producing objects began to illuminate the universe. Cosmic Dawn

: Gravity pulled primordial gas together to form the very first celestial structures, which eventually triggered the Epoch of Reionization by ionizing the surrounding gas. Cosmic Dawn