Northern Summer on Titan

Jun. 23rd, 2017 05:01 am
[syndicated profile] apod_feed

While yesterday's solstice brought summer to planet Earth's While yesterday's solstice brought summer to planet Earth's


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.