Welcome to Celestia ... The free space simulation that lets you explore our universe in ... seamless; the exponential zoom feature lets you explore space across a huge range of scales, from galaxy clusters down to spacecraft only a few meters across. A 'point-and-goto' interface ... of stars, galaxies, planets, moons, asteroids, comets, and spacecraft. If that's not enough, you can download dozens ...

... Software that allows you to track the International Space Station and other satellites in real time. Easy to use. Radar system alerts you to satellites that is within viewing range. ...

... hypothetical form of energy which permeates all of space and has strong negative pressure. According to the ... the cosmological constant, a constant energy density filling space homogeneously, and quintessence, a dynamic field whose energy density can vary in time and space. Distinguishing between the alternatives requires high-precision measurements of ... of March, 2006 the satellite of China National Space Administration, DARKSTAR started operations, observing in neutrino the ...

... galaxies, cluster, nebulae and the milky way! Relativistic space-time effects such aberration and Doppler shift are optional Requires a 3D-card. Anaglyph 3D-glasses (for true '3D stereo') and joystick or game pad are optional. ...

... people interested in astronomy, cosmos, planets, solar system, space flights, science, galaxies, stars, nebulae, the Milky Way ... higher resolution mode. You do not need a spaceship to enjoy the planet, just visit the high resolution VR world embedded into VRMars-Spirit - The Red Planet Mars 3D software. Full version contains ...