37K views · 411 reactions | A giant meteor, freezing over, or over-heating.... However this planet goes, we're going to need a Plan B if we want to survive. Watch 'How the Universe Works' Tuesdays at 10pm ET on Science Channel or anytime on SCI GO: https://bit.ly/2VugeCC | Science Channel | Facebook

42K views · 841 reactions | We've never seen a black hole, but we think we've been able to hear them. And we also think they might have hair. | Science Channel | Facebook

89K views · 1K reactions | If you think interstellar space is quiet and dark, think again. It's teeming with planetary objects and activity. Some things even passing through our neighborhood. Let's find out all the things that are traveling through interstellar space in an all-new HOW THE UNIVERSE WORKS at 10p EST! | Science Channel | Facebook