Speed of Light

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The Speed of Light is the speed that light travels in a year, its exact value is defined as 299792458 metres per second.

Overview

The speed of light is about 220,000 miles per second. (SG1: "Prometheus") Light takes several minutes to travel between the Earth and the Sun. (SG1: "1969") A Tel'tak can travel at twice the speed of light. (SG1: "Deadman's Switch") Supernova blasts can expand at nearly the speed of light. (SG1: "Exodus") The sublight engines on the Prometheus can accelerate to half the speed of light. (SG1: "Prometheus")

History

In 1997, the Goa'uld upgraded their hyperdrive technology going from being able to accelerate from 10 times the speed of light to over 3600 times the speed of light. (SG1: "Within the Serpent's Grasp")