36K views · 1.7K reactions | What is a white hole? Could they exist? Would they be connected to black holes through wormholes? #theory #space #astronomy | Astro Alexandra | Facebook

1.5M views · 30K reactions | Black holes are some of the most extreme and least understood places in the universe, where the rules of physics collapse and time warps. Here, we venture into the heart of a supermassive black hole in the center of the Milky Way to understand terrifying and fascinating secrets about parallel universes, wormholes, and space-time. #ScienceChannel #HowTheUniverseWorks | Science Channel | Facebook