After almost six months aboard the International Space Station, ESA astronaut Matthias Maurer is coming home. Watch all the action, from undocking to splashdown, live on ESA Web TV.

Video: 00:04:42

For the first time since mid 2011, ESA has two astronauts living and working together aboard the International Space Station. Watch a conversation between Samantha Cristoforetti and Matthias Maurer in this rare moment for Europe in space.

The astronauts’ meeting marks a brief crossover between the start of Samantha’s second space mission, Minerva, and Matthias’s final days in orbit for his first mission, Cosmic Kiss.

Samantha arrived with Crew-4 on 28 April in SpaceX Crew Dragon Freedom, while Matthias will depart with Crew-3 in SpaceX Crew Dragon Endurance in May after almost six months on the Station.

In this video

ESA’s Laser Interferometer Space Antenna (LISA) passed an important review that marks the mission as feasible for final technology development and design before adoption.

Video: 00:02:47

Take a look inside the box and join ESA astronaut Matthias Maurer from a very special perspective as he supports the @DLR Mason/Concrete Hardening experiment.

The Concrete Hardening experiment investigates the behaviour of various concrete mixtures containing cement and sand or simulated ‘Moon dust’ combined with water and various admixtures. On Earth, higher density components tend to move downward but in weightlessness they are likely to be more evenly distributed.

Researchers will analyse the concrete mixed by Matthias in space for strength, bubble and pore distribution as well as crystal structures, comparing this to ground samples. Their findings will

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