Abstract: With the fast progress of high-resolution microwave and millimeter-wave (MMW) near-field imaging systems, image artifacts caused by complex high-contrast target become a nonnegligible issue ...

The oddly named black hole is firing out energy beams up to 100 trillion times more powerful than the fictional massive space station and super weapon.

Treasures unearthed by hundreds of archaeologists during the ongoing construction of the controversial HS2 train line have been shown exclusively to the BBC. The 450,000 objects, which are being held ...

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