Photo credit: Gizmodo

Ghostly and nearly transparent, Aerogel is the world’s lightest solid, weighing only three times that of air and is 1,000 times less dense than glass. It’s almost like an overcast rainbow resembling a hologram and appearing to be a projection rather than a solid object. The material is rarer than diamonds and costs thousands of dollars per ounce. Click here to view the first image in today’s viral picture gallery. Continue reading for a viral video of an interesting anti-gravity wheel.