37K views · 405 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

579K views · 6.2K reactions | Does the universe have an edge? It's one of the deepest mysteries in science and scientists are probing the cosmos for answers. The search for an edge involves a journey to the deepest reaches of space, to the beginning of time and onward to infinity. #HowTheUniverseWorks | Science Channel | Facebook

4.7M views · 10K reactions | Should we use nuclear weapons to destroy incoming asteroids? Y/N. | Science Channel | Facebook

As NASA’s James Webb Telescope begins to reveal images of the mysteries of the universe, we explore one of the most mysterious of all: black holes. What are they and why are they so important? https://econ.st/3VDQNND | The Economist