#Sentinel5P in excellent health: update from mission control https://t.co/93LtgNpRAh pic.twitter.com/xoTbpTA8jU — ESA Operations (@esaoperations) October 16, 2017

.@AstroAcaba and @astro_paolo demonstrate how a fidget spinner works in space. #TeacherOnBoard pic.twitter.com/ojUraedFlg — NASA Education (@NASAedu) October 16, 2017

Find out with @astro_paolo and @AstroAcaba #TeacheronBoard https://t.co/PmRBDYirzj — ESA (@esa) October 16, 2017

NOW on @NASA Facebook LIVE https://t.co/YT21Y4GwIB #TeacheronBoard @Space_Station https://t.co/Tm7fbvxdP1 — ESA (@esa) October 16, 2017

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.@ESA_Integral sees blast travelling with the #GravitationalWaves released during #NeutronStar merger: https://t.co/LUXEa0Bp8g pic.twitter.com/nO6ED4vguM — ESA (@esa) October 16, 2017

.@LIGO spokesperson David Shoemaker is explaining how we detect #GravitationalWaves using interferometers. Tune in: https://t.co/0nrBZkiU0K — LIGO (@LIGO) October 16, 2017

Follow the announcement of #GravitationalWaves from merging #NeutronStars by the @LIGO & @ego_virgo collaborations. Live NOW! https://t.co/UeEFiaKORy — ESA Science (@esascience) October 16, 2017

A cloudy day over volcanic #Mars, captured by @ESA_TGO #ExoMars last year: @ESAscience IOW https://t.co/ECsmcZEEto pic.twitter.com/fhwFow3Jd1 — ESA (@esa) October 16, 2017