We've seen traces of the first stars

• Autores: Leah Crane
• Localización: New scientist, ISSN 0262-4079, Nº. 3168, 2018, pág. 10
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Our first glimpse of the universe's earliest stars may help us figure out what makes up dark matter. Observations have revealed hydrogen from the era when stars were first lighting up, and the gas appears to have interacted with dark matter particles. Now, Judd Bowman at Arizona State University and his colleagues have finally spotted it. As the frequency of the signal from the early universe overlaps with FM radio frequencies, they built a specialized radio telescope in the Australian outback, where it can avoid contamination by Earthly radio waves. Bowman and his team remain cautious about their finding, even after two years of double-checking every part of their radio telescope, and building an exact copy to confirm their measurement. Other experiments will have to independently verify the signal that the team found