Take a ringside seat as NOVA captures moments of high drama when the cosmos changed forever. "NOVA Universe Revealed" premieres on WED OCT. 27. Stream all five episodes starting at 8a ET: https://to.pbs.org/3iGO0mi | NOVA l PBS

On March 3, 1974, the first episode of NOVA premiered. Since then, we've enjoyed over half a century of scientific adventures with viewers like you. Here's to sharing more incredible discoveries! | NOVA l PBS