A dust storm passed through Sydney, Australia, Wednesday morning. While a thick cake of orange dust covered everything that didn’t move, residents described a soft-pink, deep-red, or even yellow ...

The rare flyby of the Comet Siding Spring by Mars on Oct. 19 painted the Martian sky yellow with comet dust, scientists say. See how it happened here.

The exterior of the gleaming, white complex, which was designed by American architect Richard Meier, has been adorned in red, yellow and blue strips of adhesive foil.