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Circular pendulum orbit -This is a kind of circular orbit for light, which takes place in the negative space of a Kerr black hole.
Circular pendulum orbit -This is a kind of circular orbit for light, which takes place in the negative space of a Kerr black hole.
Lewis Carroll writes about military space programmes, policy, technology and the industry that supports the sector. He spent nearly two decades covering the military, the Pentagon, Congress and the defence industry as a journalist for Space Chatter magazine.