3D flight through star cluster Westerlund 2 — fast. Source caption is in Engliish here https://t.co/8GcXjDez1I
— ESA (@esa) November 22, 2017
Previous Post: ESA on Twitter
		Next Post: Alexander Gerst on Twitter
	
			
			3D flight through star cluster Westerlund 2 — fast. Source caption is in Engliish here https://t.co/8GcXjDez1I
— ESA (@esa) November 22, 2017