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Astronomy

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TESS satellite

READY TO FLY  NASA’s exoplanet hunting TESS satellite, shown in this artist’s illustration, is ready for  launch.

illustration of TESS telescpope

LOOK CLOSER  NASA’s next exoplanet hunting telescope, TESS (shown in this artist’s illustration), will seek out worlds orbiting the nearest and brightest stars.

Mercury

ORBIT UPDATE  Einstein’s general theory of relativity led scientists to rethink how Mercury orbits the sun. A new analysis calculates a secondary effect of general relativity on that orbit.

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