@DonBuley @Thom_astro He means if they discover the potential collision too late to be able to do the manoeuvre — ESA (@esa) April 18, 2017

Space debris management is essential to the life of an astronaut. @Thom_astro's message for #SpaceDebris2017 conf. https://t.co/NkHH7Zi3r6 — ESA (@esa) April 18, 2017

Congratulations! #Cygnus heading your way @Thom_astro, @AstroPeggy & Oleg! https://t.co/sAXnMG5yWl — ESA (@esa) April 18, 2017

We have liftoff of @ulalaunch #AtlasV carrying our S.S. John Glenn #Cygnus spacecraft to @space_station pic.twitter.com/fId2KkE9r0 — Orbital ATK (@OrbitalATK) April 18, 2017

360 here: https://t.co/S2dlJzotpM https://t.co/MRvDLV9R1Y — ESA (@esa) April 18, 2017

Live now, watch a rocket launch in 360° – a first! Launch at 17:11 CEST with supplies for @Space_Station https://t.co/RNXhO4ea0u — Human Spaceflight (@esaspaceflight) April 18, 2017

Launching at 17:11 CEST/15:11 GMT #Cygnus https://t.co/Q1FS8Kldz2 — ESA (@esa) April 18, 2017

The Venice of the North, Saint Petersburg #Russia imaged by @CopernicusEU #Sentinel2-A last winter #WorldHeritageDay https://t.co/9Hepis2VAM pic.twitter.com/63VuLP6rTe — ESA EarthObservation (@ESA_EO) April 18, 2017

Satellite service boosting special flight operations #aviation #satcoms https://t.co/VFHU4h4TX9 pic.twitter.com/M6ojxSPbwg — ESA (@esa) April 18, 2017

#ICYMI Watch a replay of this morning's opening sessions of the #SpaceDebris2017 conference https://t.co/l19jVz5zaz pic.twitter.com/kIhOKK7S3s — ESA (@esa) April 18, 2017