Why is the expansion of our universe accelerating? Twenty-five years after its discovery, this phenomenon remains one of the greatest scientific mysteries. Solving it involves testing the fundamental ...

Tilt-A-Whirl meets architecture! This leaning tower of quirkiness makes the Pisa folks look like amateurs. Photo credit: ...

The price of this tooth is extraordinarily high, leaving many astonished at its value. This remarkable tooth once belonged to ...