364.2 Snippet_Proper mass
Relatively speaking.
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Astronomy Without A Telescope
the e-book is now available:
- The book is also now available through the iBooks app. Here is a quick guide to getting the book onto i-devices, such as an iPad.
- This is the Amazon version for Kindle. It will also work on devices (e.g. iPads) with a Kindle app.
- This is the .epub version which will work on other e-book devices without Kindle functionality.
Category Space missions
361.2 Snippet_Artemis Update
Getting there.
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360.2 Building a lunar colony 2of2
Building uncertainty.
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360.1 Building a lunar colony 1of2
Building optimism.
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360. Dear Cheap Astronomy – Episode 129
Rocks, big and small.
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