The #legacy of @ESAHerschel covers >2000 science papers: https://t.co/BEX62R81FN & >100 PhD theses: https://t.co/NOXfUIMHAe #HerschelMoments pic.twitter.com/P1RS6Rllhj — ESA Science (@esascience) September 21, 2017

Image of the week: The webcam on #Mars Express spots the craters where rovers have roved https://t.co/6Q4pua5k6C @esamarswebcam pic.twitter.com/yQ78MO6nnS — ESA Operations (@esaoperations) September 21, 2017

Is it a comet? Is it an asteroid? It's both…and it's binary! @HUBBLE_space sheds new light on this bizarre object: https://t.co/0pIcQ8m9YJ pic.twitter.com/23DpA8wHHa — ESA Science (@esascience) September 21, 2017

#WhereOnEarth was this satellite image captured? #QuoteRetweet your best guess. The answer will be revealed tomorrow during #EarthFromSpace. pic.twitter.com/JbJkNzq1Kj — ESA EarthObservation (@ESA_EO) September 21, 2017

Peering back in cosmic history, @ESAHerschel probed how #galaxies evolved over billions of years: #HerschelMoments https://t.co/xJhII8glm4 pic.twitter.com/svNTQ4n8Xh — ESA (@esa) September 21, 2017

The Moon, three planets, and a bright star gathered near the ecliptic plane in the September 18 morning sky over Veszprem Castle, Hungary. In this twilight skyscape, Mercury and Mars […]