Celestia is a 3D astronomy program created by Chris Laurel. The program is based on the Hipparcos Catalogue (HIP) and allows users to travel through an extensive universe, modeled after reality, at any speed, in any direction, and at any time in history. Celestia displays and interacts with objects ranging in scale from small spacecraft to entire galaxies in three dimensions using OpenGL, from perspectives which would not be possible from a classic planetarium or other ground-based display.
NASA and ESA have used Celestia in their educational and outreach programs, as well as for interfacing to trajectory analysis software.
Celestia is available for AmigaOS 4, Linux, Mac OS X, and Microsoft Windows. Celestia is free software released under the GNU General Public License.
There are three graphical front-ends available: GLUT, GTK+ or Qt.
Celestia's final update came in 2011. Since then, some of its development team have gone to work on either Celestia.sci, a cosmological visualizer or SpaceEngine, a similar software but featuring more realistic graphics.
SSC may refer to:
Scleroderma, also known as systemic sclerosis, is a chronic systemic autoimmune disease characterised by hardening (sclero) of the skin (derma). In the more severe form, it also affects internal organs.
Limited scleroderma involves cutaneous manifestations that mainly affect the hands, arms and face. It was previously called CREST syndrome in reference to the following common manifestations:calcinosis (the deposition of calcium nodules in the skin), raynaud's phenomenon (exaggerated vasoconstriction in the hands, with fingers undergoing white-blue-red color transitions in the cold), esophageal dysfunction (leading to difficulty swallowing), sclerodactyly (skin thickening on the fingers), and telangiectasias (dilated capillaries on the face, hands and mucous membranes).
Diffuse scleroderma is rapidly progressing and affects a large area of the skin and one or more internal organs, frequently the kidneys, esophagus, heart and/or lungs. This form of scleroderma can be quite disabling. There are no treatments for scleroderma itself, but individual organ system complications are treated.
I'm not a product of your environment
I don't hold these truths to be self-evident
I don't necessarily hate the establishment
but I don't think you really know what I meant what I said