How fast do black holes spin?

Black holes bend space-time so abruptly that even light finds it difficult to escape their gravitational pull. Nobody knows what happens at the center of a black hole because the known laws of physics break down at the singularity. This puts them among the strangest known objects in the universe. But, mathematically speaking, a black […]

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Why is Neptune so blue in color?

Neptune is undoubtedly one of the most beautiful planets in the solar system. It is the only planet in the solar system that was predicted mathematically before it was directly observed. Much of what we know about this bright blue planet comes from the data gathered by NASA’s Voyager 2 spacecraft during its Neptune flyby […]

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