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Black holes

123 cards. Each one is a 40-second story with a five-minute read behind it. Page 3 of 3.

  1. What actually happens when you approach a black hole?Black holes are regions of spacetime with gravity so immense that even light cannot escape. This video features NASA theoretical astrophysicist Ronald Gamble as he uses mathematic…
  2. The cosmic explosions so powerful they were discovered by accidentIn the 1960s, US military satellites were hunting for illegal nuclear tests. Instead, they stumbled upon the most energetic events in the known universe: gamma-ray bursts. These b…
  3. Gravity's Grip: Testing Einstein Near the Milky Way's CoreAstronomers have finally observed the predicted warping of spacetime caused by a supermassive black hole. Using the Very Large Telescope, they tracked a star's path, confirming Ge…

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