This is the least dense gold nugget in the entire world. It can be held up with a feather, float on top of coffee froth and rest on a flower's petals. It’s supported by a space-age material often dubbed “frozen smoke”, but we know it as aerogel. Read more >>

By Adam Clark Estes on at

Some Rubik’s Cube enthusiasts built a supermassive 22-by-22-by-22 and made a 90-minute YouTube video about it. In the end, it’s a very sad story. Read More >>