ISS ORBIT ADJUSTMENT DELAYED TO AVOID HITTING SPACE DEBRIS - A maneuver to raise the orbit of the International Space Station has been delayed by two days until January 18 over the threat of collision with space debris, a source in the space sector has said. The ISS orbit was due to be raised Thursday by nearly two kilometers to the altitude of 417 kilometers to ensure safe docking of a Russian cargo spacecraft in February. More (Source: RIA Novosti - Jan 16) NASA MOVING SATELLITE TO LAUNCH PAD - NASA's Tracking and Data Relay Satellite is getting closer and closer to liftoff. On Monday crews at the Astrotech Space Operations facility in Titusville are transporting the Tracking and Data Relay Satellite-L, TDRS-L for short to Launch Complex 41 at the Cape Canaveral Air Force Station. The satellite has spent much of the month at Astrotech in Titusville, where crews have been working on it.
This page illustrates that our visual perception cannot always be trusted. The components of an object can distort the perception of the complete object. Our mind is the final arbiter of truth. Most optical illusions are the result of 1) incongruent design elements at opposite ends of parallel lines, 2) influence of background patterns on the overall design, 3) adjustment of our perception at the boundaries of areas of high contrast, 4) afterimages resulting from eye movements or from kinetic displays, or 5) inability to interpret the spatial structure of an object from the context provided by the picture.
Description 3D simulation of the Solar System and night sky in real time - the Sun, planets, dwarf planets, comets, stars and constellations. - Heliocentric view with real-time positions of planets and planetary orbits - Schematic and realistic sizes of the planets and distances between them - Movement of the planets in time to see how they move in relation to each other - Virtual Orrery - Planetary exploration with info texts and additional views such as structure - Dwarf planets (Pluto, Ceres, Haumea, Makemake. Eris) and their orbits - Comets (Siding Spring, Lovejoy 2013, Lovejoy 2011, Panstarrs, ISON, Halley) - positions and trajectories - Stars and constellation of the night sky as viewed from a given location - Changes in the night sky during night, month and year - Searching of the stars and constellation, ecliptic line, grid lines and more