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The Trump administration is seeking contractors to help it overhaul the United States’ immigrant detention system in a plan ...

A strange, layered structure in deep space has captured astronomers’ attention, looking uncannily like a cosmic sandwich ...

Scientists have discovered a giant cosmic filament where galaxies spin in sync with the structure that holds them together.

Space debris – the collection of defunct human-made objects in Earth's orbit – is already affecting space agencies, companies and astronauts. This debris includes large pieces, such as spent rocket ...