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A Draco thruster is a small hypergolic rocket engine designed by SpaceX for use on their Dragon spacecraft, and on the upper stages of their Falcon 9 and Falcon Heavy rockets, to provide for spacecraft attitude control in the vacuum of space. 
Draco is a constellation in the far northern sky. Its name is Latin for dragon. Draco is circumpolar (that is, never setting) for many observers in the northern hemisphere. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations today. The north pole of the ecliptic is in Draco.
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Draco volans, or the Flying Dragon, is a member of the genus of gliding lizards Draco. It can spread out folds of skin attached to its movable ribs to form "wings" that it uses to glide from tree to tree over distances upwards of 8 metres (26 ft); however, like all modern reptiles, it lacks the ability to sustain powered flight, and is capable only of gliding. Its wings are brightly coloured with orange, red and blue spots and stripes, and they provide camouflage when folded. The flying dragon can reach up to 23 centimetres (9.1 in) in length. It feeds on arboreal ants and termites. 
Draco is a genus of agamid lizards that also are known as the Flying Dragons. The ribs and their connecting embrane may be extended to create a wing, the hindlimbs are flattened and wing-like in
cross-section, and a small set of flaps on the neck serve as a horizontal stabilizers. |
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