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Tag Archives: aliens

alien communication [try it]

Back in 1974, a message was beamed out from the Arecibo radio telescope towards the globular cluster M13. The hope is that it will be intercepted by some alien civilization that will then study it and learn some basic things about us. The full message, encoded as a string of two distinct patterns, is given […]

little green men [Q&A]

By far the most common question I get asked on astronomy outreach visits is: are there aliens like us somewhere else in the Universe? There are ten billion stars in our Galaxy, and a hundred billion galaxies in the Universe that we can see, and the Universe itself is apparently a couple of hundred times […]