The awe-inspiring distances of the cosmos are hard to visualise, so how can we be certain we are measuring them correctly?

Sound waves 'fossilized' in the arrangements of galaxies across the Universe support the theory that the Milky Way galaxy ...

A new nanometer-scale measurement tool uses quantum optical interferometry with extreme color entanglement to achieve faster, more precise measurements than classical or previous quantum methods ...

Create a linear scale in Excel to display the measurements of a map, drawing or model. Linear scales ar. Chron Logo Hearst Newspapers Logo. Skip to main content. Newsletters. About Us.