Here's a picture of the stuff... (Score 0)

http://images.google.com/imgres?imgurl=www.anomali es-unlimited.com/Science/Images/Gel.jpg&imgrefurl= http://www.anomalies-unlimited.com/Science/Aerogel .html&h=247&w=391&start=2&prev=/images%3Fq%3Daerog el%2Bnasa%26svnum%3D10%26hl%3Den%26lr%3D%26ie%3DUT F-8%26oe%3DUTF-8

or

http://images.google.com/imgres?imgurl=spaceflig ht now.com/news/n0205/08aerogel/aerogel.jpg&imgrefurl =http://spaceflightnow.com/news/n0205/08aerogel/&h =285&w=398&start=9&prev=/images%3Fq%3Daerogel%2Bna sa%26svnum%3D10%26hl%3Den%26lr%3D%26ie%3DUTF-8%26o e%3DUTF-8

or

http://images.google.com/imgres?imgurl=i.cnn.net /c nn/2002/TECH/space/05/09/record.gel/story2.light.g el.jpg&imgrefurl=http://www.cnn.com/2002/TECH/spac e/05/09/record.gel/&h=168&w=220&start=19&prev=/ima ges%3Fq%3Daerogel%2Bnasa%26svnum%3D10%26hl%3Den%26 lr%3D%26ie%3DUTF-8%26oe%3DUTF-8