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Centaurus A halo

Hubble traces the halo of a galaxy more accurately than ever before

This artist's conception shows the Uranus-sized exoplanet Kepler-421b, which orbits an orange, type K star about 1,000 light-years from Earth.

Transiting exoplanet with longest known year

16 Cyg A and16 Cyg B chemical composition

Fingerprinting the formation of giant planets

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Rosetta's comet "sweats" two glasses of water per second

Easy-to-Find Objects in the 2014 Summer Sky

Get to know the night sky with Astronomy magazine's new app!

Eclipsewide

Join Astronomy in the Faroe Islands for a total solar eclipse!

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