Video Archive

  • Bright fireball widely seen over northeastern Mexico

    A fireball is an especially bright meteor from space. It can start out icy and burn up entirely in our atmosphere, or rocky … in which case a meteorite sometimes falls to Earth’s surface. This bright fireball blazed over northeastern Mexico on Tuesday, October 6, 2020.

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  • Black Hole Simulations Show That Just Three Particles Can Break Time Symmetry

    Time has a precise direction.

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