There is a temporal realm called the Planck scale, where even attoseconds drag by like eons. It marks the edge of known physics, a region where distances and intervals are so short that the very concepts of time and space start to break down….The problem, in brief, is that time may not exist at the most fundamental level of physical reality.

Einstein, for one, found solace in his revolutionary sense of time. In March 1955, when his lifelong friend Michele Besso died, he wrote a letter consoling Besso’s family: “Now he has departed from this strange world a little ahead of me. That means nothing. People like us, who believe in physics, know that the distinction between past, present, and future is only a stubbornly persistent illusion.”

Nanojourneys offers an interactive tour into the nanocosmos, allowing us to shrink down and explore a mosquito biting a human arm, a computer processor and an LED light at the smallest dimensions. I particularly enjoyed hanging out here at the tropical hair forest, where sunbeams bounce off nanoparticles of sunblock and blood platelets travel up the mosquito’s proboscis.