Signals from Outer Space?

Were "little green men" trying to contact us? Over 40 years ago, extremely constant pulses were detected reaching the Earth from outer space. It caused a great sensation. Speculation was that the signals were coming from intelligent life somewhere in outer space. Scientists conducted careful investigations but they couldn't identify the source. It was later found that these signals were coming from newly discovered stars called pulsars. What exactly are these curious stars? Using dynamic CG images, we provide a fascinating look at the challenges scientists face in investigating these unusual stars.

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