#DYK there are seasons on other planets too! #Mars like Earth has 4 seasons, but they last about twice as long! In 2009 @CassiniSaturn captured this image of the #Saturn […]

Happy #Equinox! Why does Earth have seasons anyway? Find out more in this video from @Paxi_ESAKids (check the video caption for more languages)https://t.co/hNcrbuCwCZ — ESA (@esa) March 20, 2018

#OTD 20 March 1964, the #ESRO Convention was ratified – this date is now recognised as the birth of ESRO. Two years earlier, on 14 June 1962, 10 European nations […]

#ARIEL – the Atmospheric Remote‐sensing Infrared #Exoplanet Large‐survey mission – has been selected as our fourth medium-class @esascience mission, to be launched mid-2028Details: https://t.co/9NRRG0Skpc pic.twitter.com/SNkRiGdscn — ESA (@esa) March 20, […]

T-3 months before launch and @astro_alex is busy with final preparations. Here he is providing baseline data for @CNES Grasp experiment that he will perform on @Space_Station. More on this […]

Unfortunately there is already a lot our there. This project will give a bigger picture of the situation & support decision makers by helping to identify where and how litter […]

Can the millions of tonnes of #oceanplastic litter be detected using satellites? A new ESA project is investigating. Details: https://t.co/8eF9ZUQ12H pic.twitter.com/Rzz5dfQHKW — ESA (@esa) March 20, 2018