The Soyuz launch sequence explainedAccess the video

Getting to space

Easing from the grasp of Earth’s gravity is no easy feat. Humans dreamed of going to the stars for centuries, but it took until 1961 for Yuri Gagarin to become the first human to orbit our planet.

When ignited, the Soyuz launcher delivers mind-boggling power to escape the clutches of Earth’s gravity and provide a cruising speed of 28 800 km/h.

Within 10 minutes of rising from the pad, ESA astronaut Thomas Pesquet, Roscosmos commander Oleg Novitsky and NASA astronaut Peggy Whitson will have travelled over 1640 km and gained 210 km altitude. Every second for nine minutes, their spacecraft will have accelerated 50 km/h on average.

Thomas will be the first ESA astronaut to fly on the upgraded Soyuz MS vehicle – only the third launch of the new model ever. 

Their Soyuz MS-03 spacecraft shares its name with the Soyuz launcher, which means ‘union’ in Russian. The ‘MS’ denotes the most recent update to the fourth generation of this long-serving spacecraft. It  stands for Modified Systems, with many smaller technological upgrades to make the spacecraft lighter and more modern. For example halogen lights have been replaced with LEDs and newer and larger solar panels to increase power generations.

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Peggy, Oleg and Thomas in front of SoyuzAccess the image

Using a different numbering system, the flight is also designated as Soyuz 49S – the 49th crewed Soyuz launch to the International Space Station.

Astronauts wear Sokol suits that offer protection in an emergency. They are designed for the Soyuz sitting position, which is why astronauts look so hunched over as they walk to their rocket.

Expedition 50 will take two days to reach the Station while orbiting Earth 34 times.

Soyuz carries a module on top of the crew section to serve as living quarters enroute to the Station. Naturally, a toilet is included. 

Journey to the ISS Part 2: Soyuz rendezvous and docking explainedAccess the video

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