ESA Top Multimedia

The European Space Agency’s terrestrial planet hunter Plato has recently completed a series of key tests inside the Maxwell Test Chamber at ESTEC, demonstrating that its electronic equipment is fit to work in space.

This photo captures the spacecraft standing inside the special chamber. The shielded enclosure features conducting metal walls, floor, and ceiling that form a Faraday cage, screening out all external interference. Its 9 m-high interior is lined floor to ceiling with foam spikes that absorb electrical signals and sounds to mimic the void of space.

Once the chamber was sealed closed, engineers remotely switched on and commanded Plato’s electronic equipment. They ran a series of tests to ensure that the spacecraft’s complex instruments and modules did not interfere with each other or with the communication systems, creating unwanted ‘crosstalk’.

In the extreme vacuum of space, a spacecraft’s electronics can behave differently than they do in a typical test lab on the ground. Without proper testing, this can have unforeseen consequences that could affect the mission’s goals or even damage the equipment.

Thanks to the tests run in the Maxwell Test Chamber, engineers verified that Plato’s many electronic systems can work together in space without interference – in other words, that they are electromagnetically compatible.

With compatibility checked off, Plato has now cleared the last remaining major exam in the series that the spacecraft must undertake to graduate for launch.

The exams started back in January this year with vibration and acoustic tests, followed by a month-long stay inside the Large Space Simulator where Plato aced a demanding set of tests and demonstrated that it is fit to withstand the harsh conditions of space.

Plato will lift off on an Ariane 6. Its launch is planned by Arianespace for March 2027.

[Image description: Photograph of a spacecraft towering at the centre of a large test chamber. The chamber's walls and ceiling are covered with dense rows of blue foam spikes that create a striking geometric pattern extending in all directions around the spacecraft. The right side of the spacecraft is dominated by shiny black, stowed, solar panels. The spacecraft body is partly visible on the left wrapped in reflective gold-coloured insulating foil and partially covered by a translucent protective sheet secured with small pieces of red tape.]

His Majesty King Charles III visited the Harwell Campus in Oxfordshire on 10 July to launch a new initiative designed to shape the future of the space and defence economy. Located adjacent to the European Space Agency’s European Centre for Space Applications and Telecommunications (ECSAT), the Space and Defence Gateway was officially opened by His Majesty at an event attended by ESA Director General Josef Aschbacher and other senior representatives from ESA, the UK Government and the Harwell Campus.

This photo features His Majesty being greeted by Josef Aschbacher; UK members of ESA’s astronaut reserve Meganne Christian and John McFall; UK ESA astronaut Rosemary Coogan; and Barbara Ghinelli, Director of Innovation Clusters, Harwell Campus, UKRI-STFC, and founder of the UK Space and Defence Gateway.

The visit provided an opportunity for Josef Aschbacher to present His Majesty with a Union Flag that spent nearly a year aboard the International Space Station.

On 1 June 2026, the BepiColombo mission control team across ESA, JAXA and industry met at the European Space Operations Centre (ESOC) to kick off the simulations campaign in preparation for the Mercury arrival phase. Throughout the campaign, this team of teams will rehearse the key separation steps that comprise arrival: MTM separation, Mercury orbit insertion, MPO-Mio separation, and MOSIF sunshield separation.