The Sloan Digital Sky Survey (SDSS) is one of the most ambitious and influential surveys in the history of astronomy. Over eight years of operations (SDSS-I, 2000-2005; SDSS-II, 2005-2008), it obtained deep, multi-color images covering more than a quarter of the sky and created 3-dimensional maps containing more than 930,000 galaxies and more than 120,000 quasars. SDSS data have been released to the scientific community and the general public in annual increments, with the final public data release from SDSS-II scheduled for October 31, 2008. SDSS-III, a program of four new surveys using SDSS facilities, began observations in July 2008, and will continue through 2014.
"SDSS-III's newest release is Data Release 10 (DR10). DR10 contains the first spectra of the APO Galactic Evolution Experiment (APOGEE), as well as additional sky coverage and better galaxy parameter estimates from BOSS."
"Deep Space Map allows you to view celestial objects, including stars, constellations, galaxies and planets.
The images seen here are identical to those found in version 1 that uses Google Earth API."
"This application allows you to interactively browse global satellite imagery within hours of it being acquired. Use the features described below to find interesting imagery, save and share what you find, and download the underlying data."
"Watch the International Space Station pass overhead from several thousand worldwide locations. It is the third brightest object in the sky and easy to spot if you know when to look up.
Visible to the naked eye, it looks like a fast-moving plane only much higher and traveling thousands of miles an hour faster!"
" the starting point for access to data from the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS). This page provides a brief summary of the facilities and data products to guide Pan-STARRS archive users. More complete information is provided on linked pages (see below)."