With its iconic rusty hue, Mars has long been called the red planet. Now, scientists may have discovered the potential source of that distinctive coloring, overturning a popular theory in the process.

Mars has shone red in the night sky for as long as humans have gazed up at the cosmos, fascinating people from the ancient Romans to the present day. "The fundamental question of why Mars is red ...

Yusef-Zadeh and his collaborators were able to compare how the flares' brightness changed with each wavelength. Yusef-Zadeh said capturing light at two wavelengths is like "seeing in color instead ...

Researchers say they saw a rapid-fire display that included short flashes and longer blindingly bright flares of light on a daily basis. A study describing the findings appeared earlier this week ...