TV Presenter Liz Bonnin looks to the stars for her pick from the Periodic Table. The properties of Beryllium make it the perfect material for the huge mirror being used in the James Webb Space Telescope - NASA's successor to the Huble telescope launching in 2018.
Each day in December, we'll publish a new video revealing the elements that really excite and inspire people. For an exclusive first look at the latest video visit the Ri's Online Advent Calendar: advent.richannel.org
