People have been heartbroken to discover what the location of the Windows XP desktop background really looks like today.

Maya blue, discovered by modern researchers in 1931, is not an easy pigment to make. Echoing the color of an azure sky, the indelible pigment was used to accentuate everything from ceramics to human ...

Hidden away in the darkest corners of Earth’s atmosphere, a faint green airglow quietly paints the night sky, far from the ...

It is a small area of the sky, equivalent to holding a square of one millimeter by one millimeter at arm’s length. But tens ...