Updating Astronomy Section - Githubissues

EbookFoundation / free-science-books

Inspired by free-programming-books, here's free-science-books

https://ebookfoundation.org

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Updating Astronomy Section #114

Closed kree666 closed 2 years ago

kree666 commented 2 years ago

What does this PR do?

Adds 3 free books to the Astronomy Section

For resources

Description

Why is this valuable (or not)

These are free Astronomy books that people can read online.

How do we know it's really free?

You can download the PDF's without creating an account or paying for them.

For book lists, is it a book?

Yes these are books.

Checklist:

[X] Not a duplicate
[X] Included author(s) if appropriate
[X] Lists are in alphabetical order
[X] Needed indications added (PDF, access notes, under construction)