#Arianespace announces changes to its 2018 launch manifest. Read the press release: https://t.co/Y9o2XF1mgn — Arianespace (@Arianespace) April 24, 2018

#DEIMOS2 just captured #Plesetsk launch site 133 today (Apr. 24) where #Sentinel3-B is ready for tomorrow's launch! Best of luck to @ESA and @CopernicusEU 🚀 pic.twitter.com/g7CpoWcy75 — UrtheCast (@UrtheCast) April […]

Ready to make some noise? Join @CopernicusEU's @ThunderclapIt campaign to mark Wednesday's #Sentinel3 launch! https://t.co/SADHa5IiXm — ESA (@esa) April 24, 2018

Join us tomorrow, 25 April, from 17:30 GMT (19:30 CEST) for the launch of the #Sentinel3 B Earth observation satellite. Details: https://t.co/RjpkNUwAvh pic.twitter.com/FlTWNPAXXL — ESA (@esa) April 24, 2018

Tomorrow's #Sentinel3 B launch also marks the end of months of intense preparation for the mission control team at our @esaoperations control centre in Darmstadt, GermanyDetails: https://t.co/DTjui7OqQd pic.twitter.com/7yM2dQrrib — ESA […]

.@ESAGaia's new star catalogue will be unveiled tomorrow, 25 April. Watch the media briefing live from @ILA_Berlin at 09:00 GMT (11:00 CEST) via https://t.co/aykZQW9t2H #GaiaDR2 #WaitingforGaia pic.twitter.com/HlvIXl1n46 — ESA (@esa) […]

Launched on 24 April 1990, the @NASA / @ESA @Hubble_Space has made more than 1.5 million observations of more than 43 500 celestial objects. #HubbleAnniversary https://t.co/7gWmTXMVim pic.twitter.com/9lXg89VPW0 — HUBBLE (@HUBBLE_space) […]

🎥 Every day, @ESAGaia sends home about 40GB of data. This is only the beginning: in a huge collaboration, scientists and software experts have the complex task to turn the […]

While the first flight of #BepiColombo equipment left for Kourou yesterday, final preparations continue back at #ESTEC for @ESA_Bepi pic.twitter.com/OJkb4MO7QI — BepiColombo (@BepiColombo) April 24, 2018

The European service module that will provide power, water, air and electricity to the @NASA_Orion Moon module has taken a large step closer to completion with the installation of its […]