Un paseo por el espacio

¿Hasta donde podemos llegar con una nave espacial convencional? ¿Podríamos viajar a otros planetas, otros sistemas solares, otras galaxias?

Hoy en día las velocidades de crucero de las naves que se envían al espacio pueden ser de unos 8 km/sg (100 veces mas rápido que un coche de Formula 1), pues bien, la luz viaja muchísimo mas rápido…unas 37.500 veces la velocidad de una de esas naves. Es difícil de concebir.

En el siguiente gráfico se muestra el tiempo que nos llevaría hoy en día hacer diferentes trayectos desde La Tierra (el gráfico no está a escala en absoluto, sólo pretende dar idea de lo lejos que nos encontramos del resto de objetos del espacio más cercano)

Después de esto, ¿creéis que hemos recibido muchas visitas de extraterrestres?

PaseoEspacial

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