New Nightshade version released
20 July 2010
![](/static/archives/updates/original/nightshade2_.jpg)
Nightshade 10.7.1 and a user guide are now available to download at http://NightshadeSoftware.org
Nightshade is free, open source astronomy simulation and visualization software for teaching and exploring astronomy, Earth science, and related topics. Nightshade is based on the award-winning Stellarium software, but tailored for planetarium and educator use.
Available for Windows, Linux, Mac OSX, and other platforms.
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