Enjoy views from @ESA_Rosetta's entire mission at comet #67P from pre-arrival July'14 to mission end 30 Sept'16 #OTD https://t.co/XUYVLBFkes — ESA (@esa) September 30, 2017

#OTD last year @ESA_Rosetta concluded mission by descending to surface of comet #67P. #GrandFinale story: https://t.co/M9wCFlLdTh pic.twitter.com/apXh76WGNq — ESA Science (@esascience) September 30, 2017

Even though @ESA_Rosetta mission ended #OTD last year, the science continues! Latest #news via: https://t.co/SvGMdusPoM pic.twitter.com/taXzkfSZqL — ESA Science (@esascience) September 30, 2017

It's #NationalCoffeeDay in the 🇺🇸 & I don't usually drink ☕… But when I do is in the name of #science to understand how fluids work here! pic.twitter.com/L7BcE8PBPw — Paolo […]

Health and #Space need you: LAST CALL for the Space2Health #Hackathon in Darmstadt! @esa https://t.co/diLbUzft5B pic.twitter.com/Wg0hr9h2es — Merck (@merckgroup) September 30, 2017

Head over to stand 111 where @esa is displaying their Mars rover. pic.twitter.com/lvO8npKe4p — New Scientist Live (@newscilive) September 30, 2017

A timelapse of the storm that hit #Italy a few weeks ago. Keep watching until the end of the video… Every cloud has a silver lining! pic.twitter.com/xJF1Y8CCKY — Paolo Nespoli […]

A look back at our #space week in images – from IAC to #67P: #IAC2017 #Adelaide #Greenland https://t.co/Bkuhvrka7G pic.twitter.com/oYZmKq5EZJ — ESA (@esa) September 30, 2017

Catchup #Saturday: Replay of last night's #Ariane5 launch with #Intelsat 37e & #BSAT-4a https://t.co/n2rd4rH1aI — ESA (@esa) September 30, 2017

Look through the cosmic cloud cataloged as NGC 281 and you might miss the stars of open cluster IC 1590. Still, formed within the nebula that cluster’s young, massive stars […]