This is how a star dies in a colossal explosion called a supernova. | NOVA l PBS

😨 The supernova explosion Cassiopeia A ⭐️ is expanding at an average rate of 4,000 to 6,000 kilometers per second!! This translates to roughly 13.4 million mph. The expansion is primarily due to the shock wave of the supernova explosion pushing through the surrounding gas and dust. Space is beautiful and violent. Footage from @NASA, @europeanspaceagency CSA, Alyssa Pagan (STScI) Edited by @bosplanet / @sebnspace #astronomy #bosplanet #nasawebb | bosplanet

We like the stars, the stars that go 💥BOOM!💥 But, what makes a star go boom? By understanding how stellar explosions called supernovae occur, scientists can unlock mysteries that are key to what we are made of and the fate of our universe: https://youtu.be/B94yHU-e5_c | NASA - National Aeronautics and Space Administration

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