Look at space under a microscope and what do you see? Nothing. Magnify 1,000 times. Nothing. Magnify 1,000,000 times. Still nothing. Magnify 1,000,000,000 times. Absolutely nothing. At this point ...

This forms silver metal, but it doesn’t look shiny or mirror-like, like fancy silver objects. is thick in some places and thin in others, with lighter and darker spots. image on the film. This means ...

SPECT stands for single photon emission computed tomography, and it’s creates 3-D scans of the patient’s brain that look at blood flow and brain activity, KTLA reports.

A photon cannot see the Universe at all, because seeing requires interacting with other particles, antiparticles, or photons, and once such an interaction occurs, that photon's journey is now over.

What does the Sun’s core look like? Sophie, aged 8, Perth. ... It can take one photon hundreds of thousands of years to randomly walk its way out of this layer.

How does a photon “know” to travel at the speed of light? Elaine Patrick Cyffylliog, Denbighshire, UK. I don’t know, ask Erwin Schrödinger. He was a relative of mine on my mother’s side.