476K views · 1K reactions | In this risky #slowmo challenge, Gav and Dan once again prove that warning labels are right. Don't ever try this at home! Bits of battery might dent your face and the gas that comes out might dent your lungs. 裡 | The Slow Mo Guys | Facebook

263K views · 6.3K reactions | 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 | Facebook