According to the physicists, when a large black hole captures a smaller object like a medium-sized star the process causes gravitational radiation to be emitted in a preferential direction.

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It took several frustrating trials, but we finally printed out an acceptable object -- a small, black and white checkerboard cube.

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This could be the first object in a new class of galaxy-black hole systems.

FORBES: Astronomers Find One Of The Biggest Supermassive Black Holes Yet

Haofei Shi, the report's lead author, said the material "acts as a perfect black cloth that can completely conceal the 3D structure of the object".

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Like a black hole, a wormhole would be a massive gravitational space and time warping object.

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Mantel's object may be to rescue Cromwell the man from his historical reputation as a black-hearted villain: He was a survivor, a pragmatist whose aim was always to further the interests of his master the king.

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