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Sun's gravity could boost video from deep space

  • Autores: Jesse Emspak
  • Localización: New scientist, ISSN 0262-4079, Nº. 3133, 2017, pág. 7
  • Idioma: inglés
  • Texto completo no disponible (Saber más ...)
  • Resumen
    • Independent astrophysicist Michael Hippke found that to receive even a single-watt signal sent by a probe at Alpha Centauri, an Earth-based instrument would need to be 53 kilometers across--that's bigger than New York City. In his study, Hippke proposes instead that a telescope about a meter across could relay the signal. It would just have to be placed at a point about 90 billion km from the sun--a distance that would optimize an effect known as gravitational lensing to magnify the signal.


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