
NASA @NASA
An image worth hundreds of galaxies đź’« Observed by @NASAHubble, this image features Abell 3827, a galaxy cluster that cosmologists study to reveal more about dark matter — one of the greatest puzzles faced today. Discover more: https://t.co/OqpmLvhR2F https://t.co/RVcXsJ0Upx — PolitiTweet.org