Welcome to AstroPortal, your complete Web-based study tool for your astronomy course. Not only does it lighten your backpack by offering online access to your textbook and other course materials, but communication tools make it easier to connect with your class community. With AstroPortal, you can:

• Follow a personalized study plan that helps you assess your progress.
• Work with supplemental resource material, like interactive tutorials and NASA videos.
• Do homework with instant grading and feedback.
• Take and share online notes.
• Participate in discussion forums and chat rooms.
• Communicate with your teacher and/or other students via course email.

Get Started:
You have two options for accessing AstroPortal:

• Purchase an access card for AstroPortal at the campus bookstore (either packaged with a printed textbook or by itself) and follow the Register Your Code link for your AstroPortal below.
• Purchase access to AstroPortal online through a Purchase link below.

AstroPortal to accompany Freedman, Universe, Eighth Edition

(on the Purchase page, choose 180-day for a 6 month subscription for Universe: Solar System, 3e or Universe: Stars and Galaxies, 3e)

» Go to Site
» Register your Code
» Purchase

AstroPortal to accompany Comins, Discovering the Universe, Eighth Edition

» Go to Site
» Register your Code
» Purchase

AstroPortal to accompany Comins, Discovering the Universe: From the Stars to the Planets, 1e.

» Go to Site
» Register your Code
» Purchase

AstroPortal and your Computer-System Requirements
The following Web browsers are formally supported and tested for use with AstroPortal:

• Windows: Internet Explorer version 6 or 7 and Firefox version 1.0 and above.
• Mac OS X: Firefox version 1.5 and above.

In addition, some AstroPortal resources require Adobe Shockwave Player, Adobe Flash Player, Apple QuickTime (5.0 or above), Java, or Adobe Reader (version 6 or above). The latest versions of these plug-ins can be downloaded free of charge from Adobe, Sun, or Apple Websites. To see which plug-ins you have installed and to find installers, click here.

Note: To view some features of the Portal, you may need to turn off your browser’s pop up blocker, and any pop-up blocker(s) in third-party toolbars you may have added to your browser, such as the Google or Yahoo toolbar.

Need some help? Visit our Tech Support Page.