An absorption profile centred at 78 megahertz in the sky-averaged spectrum

NATURE

NATURE PUBLISHING GROUP

1. NSF [AST-0905990, AST-1207761, AST-1609450]
2. NASA Ames Research Center [NNX16AF59G]
3. NASA Solar System Exploration Research Virtual Institute [80ARC017M0006]
4. NASA [905610, NNX16AF59G] Funding Source: Federal RePORTER
5. Division Of Astronomical Sciences
6. Direct For Mathematical & Physical Scien [1609450, 1609547] Funding Source: National Science Foundation