The Courier & Advertiser (Perth and Perthshire Edition)

Dundee hardware boldly goes on major mission to Mercury

Equipment which city teams helped develop will be in orbit round the planet in bid to uncover mysteries

- SCOTT MILNE smilne@thecourier.co.uk

Hardware developed in Dundee will embark on a seven-year, 48 million-mile mission to Mercury this weekend.

The BepiColomb­o mission to the Swift Planet launches from Kourou, French Guiana tomorrow.

It will be equipped with SpaceWire, a computer network developed by Dundee University and STAR-Dundee.

The technology connects instrument­s, processors and other onboard systems.

BepiColomb­o is a joint endeavour between the European Space Agency (ESA) and Japan Aerospace Exploratio­n Agency (JAXA).

It is the first European mission to Mercury, the smallest and least explored planet in the inner Solar System, and the first to send two spacecraft to make complement­ary measuremen­ts of the planet’s environmen­t at the same time.

Steve Parkes, chair of Spacecraft Electronic Systems at the university, feels the mission could uncover some of the mysteries of Mercury.

Mr Parkes, who is also chief technology officer at STAR-Dundee, said: “Only a few spacecraft have visited Mercury in the past so little is known about the planet.”

“BepiColomb­o actually comprises three spacecraft – two planetary orbiters and a mother spacecraft that will carry them to Mercury’s orbit – and SpaceWire features on all three.

“One of these was developed by ESA to orbit and map the complete surface of Mercury to high resolution while the other is a Japanese craft that will measure Mercury’s magnetic field and other properties because the planet is believed to be rich in iron and have interestin­g magnetic properties.

“This is a very tricky mission and one of the big challenges is that Mercury is relatively close to the sun. Temperatur­es can vary from between -173C at night to 427C during the day so spacecraft have to withstand these extreme temperatur­es as well as high levels of radiation.

“Our involvemen­t has effectivel­y been to provide the nervous system of the spacecraft. SpaceWire was developed with input from internatio­nal spacecraft engineers and has become the standard for use in space missions.”

The flight will make one flyby of

I have been working in this area for 25 years and it never stops being exciting. STEVE PARKES

Earth, two at Venus, and six at Mercury, before entering the latter’s orbit.

It will build on the discoverie­s and questions raised by Nasa’s Messenger mission, which orbited the planet between 2011 and 2015, to provide the best understand­ing to date of the solar system’s innermost planet.

BepiColomb­o will provide informatio­n about solar system evolution in general by investigat­ing how planets orbiting close to their stars in exoplanet systems form and evolve. BepiColomb­o is just one of more than 100 spacecraft to use SpaceWire technology.

“I have been working in this area for 25 years and it never stops being exciting,” Mr Parkes added. “Some of the missions that SpaceWire features on are completely amazing and help to further our understand­ing of the entire universe as well as life here on Earth.”

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 ??  ?? Top: Engineers prepare the BepiColomb­o Mercury Transfer Module for integratio­n with the two science orbiters, and an artist’s impression of the BepiColomb­o spacecraft in cruise configurat­ion.
Top: Engineers prepare the BepiColomb­o Mercury Transfer Module for integratio­n with the two science orbiters, and an artist’s impression of the BepiColomb­o spacecraft in cruise configurat­ion.
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