
The Mercury Rises For Bepicolombo
The engineering model of the BepiColombo Mercury Transfer Module has completed a 12-day Sun-simulation test inside the Large Space Simulator at ESA’s test centre in the Netherlands, where it received a taste of the extreme solar heating it will experience when it enters orbit around the Solar System’s innermost planet in 2022.
The image was taken during a dry run on 20 February, during which the facility’s motion system replicated the different orientations of the simulated solar beam and the positions of the test table.
The real test, in vacuum, began on 26 February and continued non-stop for 12 days. During this time the module was subjected to ten times the solar heating experienced by satellites circling Earth.
Some of the 121 hexagonal mirror segments that direct the simulated solar radiation onto the spacecraft are visible towards the top of the image. The aperture through which the ‘sunlight’ travels from the nineteen 25 kW lamps can be seen just to the left of the mirror segments.
The Mercury Transfer Module will carry the mission’s two scientific satellites – Japan’s Mercury Magnetospheric Orbiter and Europe’s Mercury Planetary Orbiter – into orbit around Mercury. The spacecraft will use electric propulsion to reach its destination.

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![The idea of a Space Elevator is one that dates back to the first rocket scientists. It’s a reasonably simple idea, you set off a huge cable into orbit at the same rate as the spin of the Earth. You can then send things up the cable, just like an elevator. This would allow masses to be sent up to space without the huge burst of energy a rocket uses. The reason it cannot be done at the moment is that the cable would need to be both extremely light and strong to endure the tension forces. One of the most promising ideas is to use nanotechnology, to use super elastic carbon nanotubes. 1 gram of these can stretch 18 miles! [more]](http://24.media.tumblr.com/tumblr_lm4nshNNkt1qfg7o3o1_400.jpg)
