Looking at the numbers above, you'll immediately notice that you are different ages on the different planets. This brings up the question of how we define the time intervals we measure. What is a day? What is a year? Your Age on Other Worlds

Your Age on Other Worlds

Apollo 11 - Moon - Sightseeings - Moon - Arounder
Interactive Universe
Ancient Observatories: Chaco Canyon
Welcome to the Cassiopeia Project
<div style="width: 22em; position: absolute; left: 50%; margin-left: -11em; color: red; background-color: white; border: 1px solid red; padding: 4px; font-family: sans-serif"> Your web browser needs to have JavaScript enabled in order for this application to display correctly. </div> What the astronauts see right now

Current position of the International Space Station

Current position of the International Space Station
NASA 360 Episodes
50th Anniversary of NASA
Interactive 3D model of Solar System Planets and Night Sky 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

Interactive 3D model of Solar System Planets and Night Sky

Star Viewer: an interactive map of the night sky