The Massive Stars in Westerlund 1

Jun. 21st, 2017 05:00 am
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Star cluster Westerlund 1 is home to some of the largest and most massive stars known. Star cluster Westerlund 1 is home to some of the largest and most massive stars known.


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If you could stand on the surface of the newly discovered Earth-sized exoplanet TRAPPIST-1f, what would you see? If you could stand on the surface of the newly discovered Earth-sized exoplanet TRAPPIST-1f, what would you see?