Do 'completely dark' dark matter halos exist?

Every galaxy is thought to form at the center of a dark matter halo—a region of gravitationally bound matter that extends far beyond the visible boundaries of a galaxy. Stars are formed when gravity within dark matter halos ...

Honda to test renewable tech in space soon

Honda will partner with US companies to test in orbit a renewable energy technology it hopes to one day deploy on the moon's surface, the Japanese carmaker announced Friday.

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