Metal spheres found on a Queensland beach are likely space debris, not extraterrestrial. The Australian Space Agency is working with international partners to confirm their origin.
Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.
Project Hail Mary, Solaris, and The Hitchhiker's Guide to the Galaxy are all among the very best sci-fi books set in space.
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