Virgin Galactic shows off passenger spaceship cabin interior

Passengers flying Virgin Galactic on suborbital trips into space will be able to see themselves floating weightless against the backdrop of the Earth below while 16 cameras document the adventures, the company said Tuesday.

The physical properties of dense molecular clouds

Small, dense interstellar clouds of gas and dust, containing hundreds to thousands of solar-masses of material, are suspected of being the precursors to stars and stellar clusters. These so-called cores, with gas densities ...

Europe set for launch of "space plane" prototype

Engineers were preparing for the launch Wednesday of a "space plane" that Europe hopes will help it master a key phase in orbital flight—the ability to return to Earth.

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