Opening the 21 cm Window on Our Cosmic Dawn
Dr. Joshua S. Dillon; University of California, Berkeley
21 cm cosmology promises to become a revolutionary new 3D probe of our universe. With it, we can uncover the astrophysics of the "Cosmic Dawn"—the era of the first stars and galaxies—and test our standard model of cosmology with exquisite precision. Realizing the potential of 21 cm cosmology requires overcoming considerable challenges; the 21 cm signal from neutral hydrogen is buried under astrophysical foregrounds that are orders of magnitude brighter.