(Earth Shield) - SKYLON - SABRE '..up to five times the speed of sound or directly into Earth orbit.'

<blockquote>'..aerospace technology that is now allowing the development of engines that will propel aircraft at speeds of up to five times the speed of sound or directly into Earth orbit.'

- Reaction Engines Ltd</blockquote>


Context

<blockquote>(Maglev - ET3) - The time for a new mode of transportation is NOW! "Space Travel on Earth"

'What's open source got to do with Earth science? NASA explains'

(Earth Defence) - '..NASA establish a lunar base sooner [2020] - [Lunar Orbital Station 2018]..'</blockquote>