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The exploration of space has captivated humanity for centuries, but few have contributed to the vision of space colonization as significantly as Gerard K. O'Neill. His work in the 1970s laid the ...

When a pair of superdense neutron stars collided and potentially formed a black hole in a galaxy 130 million light-years from Earth, they unleashed not only a train of gravitational waves. They also ...

Humanity’s exploration of space grew from centuries of astronomy, mathematics and experimentation into one of the most ambitious technological undertakings in history. During the twentieth century, ...