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Astronomy

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an illustration of a Dyson sphere

STAR CATCHER  To prepare for an eventual energy shortage caused by the accelerating expansion of the universe, an ultrapowerful alien civilization could gather stars and capture their energy using hypothetical structures known as Dyson spheres, illustrated above.

lightning at Jupiter's pole

IN A FLASH  Unlike Earth lightning, which is most concentrated at the equator, Jupiter’s strikes at its poles, as shown in this artist’s rendition.

Pillars of Creation

PILLAR OF STRENGTH  Columns of cosmic gas and dust dubbed the Pillars of Creation (shown in this image from the Hubble Space Telescope) may be propped up by an internal magnetic field.

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