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Most black holes form when a massive star, at least 30 times the mass of our sun, exhausts its fuel and collapses into a singularity. The spherical volume of space surrounding this singularity defines ...

In the world of artificial intelligence, the idea of “singularity” looms large. This slippery concept describes the moment AI exceeds beyond human control and rapidly transforms society. The tricky ...

IN an earlier paper1, we have described a new type of interferometer which has been used to measure the angular diameter of radio stars2. In this instrument the signals from two aerials Ax and A2 (Fig ...