Astronomer leaves message for life on Mars shortly before his death

Carl Sagan's Cosmos: A Personal Voyage (1980) Full Documentary

The Sensible Academy on Instagram: "Carl Sagan’s argument of a self-existing universe holds that the cosmos does not require an external creator because it can be explained through natural laws alone. If God is allowed to exist without a cause, then logically the universe itself can also be self-existent, avoiding special pleading. Since time began with the universe, asking for a cause “before” it may be meaningless, and invoking God adds no explanatory value beyond what science already provides

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