Celestia is a free real-time space simulation that lets you experience our universe in three dimensions.

Unlike most planetarium software, Celestia doesn´t confine you to the surface of the Earth. You can travel throughout the solar system, to any of over 100,000 stars, or even beyond the galaxy. All travel in Celestia is 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 makes it simple to navigate through the universe to the object you want to visit.

What's New in version 1.5.1:

• Added fonts for Russian, Chinese, and Japanese
• Updated translations
• Fixed date formatting for non-UTF8 locales
• Fixed crash for dates prior to JD -1.5 when local format is used
• Fixed star rendering for Macs with ATI graphics hardware (worked around a driver bug in point sprite support.)
• Fixed star glare clipping bug
• Fixed bug that caused some stars to be drawn untextured
• Fixed faster/slower options in the Windows time menu to adjust time by 10x instead of 2x
• Fixed translation of time acronyms DST and STD
• Use localized versions of start script, guide, demo, license, and controls file from locale directory
• Fixed Windows 98/ME input problem; most keyboard commands weren't working on the OSes.
• Made Lua os functions available from celx scripts when access policy is "ask"