New Result Casts Doubt on ‘Cosmic Dawn’ Claim
The first major attempt to replicate striking evidence of the ‘cosmic dawn’—the appearance of the Universe’s first stars 180 million years after the Big Bang—has muddled the picture. Four years after radio astronomers reported finding a signature of the cosmic dawn, radio astronomer Ravi Subrahmanyan and his collaborators describe how they floated an antenna on … Read more