Figure 1: Top: Gaia’s launch on a Soyuz-2 rocket (image credit: ESA – S. Corvaja, 2013). Bottom: Tim Peake’s launch on a Soyuz-FG rocket (image credit: http://www.inmarsat.com/tim-peake)
Two years ago today (Saturday 19th December 2015), ESA’s Gaia satellite was launched into space from South America by a Soyuz launch vehicle, operated by Arianespace (see previous MSSL Astro blog for more details. Gaia lifted off at 9.12am UTC (6.12am in French Guiana). On that day, many members of the lab watched the event live on TV and celebrated the successful launch with a champagne breakfast in the MSSL Common Room. One year on and we were back in the MSSL Common Room, celebrating Gaia’s first birthday in space with a fantastic Gaia-shaped cake, decorated to look like Gaia, made by MSSL chef Sue Ford (see previous MSSL Astro blog). Two years on and the launch anniversary falls on a Saturday so we are having a virtual celebration with this blog.