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Astrobiology

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Europa

HIDDEN DEPTHS  Evidence is growing that plumes of water erupt through the icy surface of Jupiter’s moon Europa, seen in this composite image taken by the Galileo spacecraft in the late 1990s.

laser and exoplanet

UNDER PRESSURE  Using lasers, scientists compressed iron to high pressures that are likely found in large, rocky exoplanets’ cores. Here, an image of inside the laser chamber is shown with an artist’s rendering of an exoplanet.

animation of signals from alien civilizations

CAN YOU HEAR ME NOW?  Electromagnetic signals (blue circles) from alien civilizations will continue traveling through the Milky Way even after the aliens are gone. The appearance of a doughnut hole represents when a civilization dies out.

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