NASA has release several concept images of what they believe the future of aviation will be like, and they range from the saucer-shaped craft (above) to massive cargo planes. Click here for first picture in gallery.

The NASA concept takes its hints from scramjet designs, and may be a very real possibility in the next 20 years. However, there are some things in this gallery which I doubt will ever find the light of day.

[via Gizmodo]

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