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 has ...

For centuries, Mars has captivated scientists and the public alike with its striking red hue. Early astronomers speculated ...

(CNN) — 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 ...