This flight marked the beginning of almost a decade of research that explored the altitudes and hypersonic speed at the edge of space. At maximum speed, the X-15 would fly at Mach 6.7 ― 4,520 ...

Trump Administration Sends 700 Marines to L.A. as Protests Continue The military said the battalion was being added to the National Guard troops already mobilized in L.A. to quell opposition to ...

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