NASA @NASA
What ingredients do you put in your galaxy clusters? π€Galaxy clusters have 3 main ingredients: individual galaxies, multimillion-degree gas, & dark matter. @chandraxray observations of this Coma galaxy cluster are being used to probe gas properties. More: https://t.co/48yXmZyB2A https://t.co/Z7JRM2woDA — PolitiTweet.org