Christiaan Huygens created the first recognizable drawings of Mars' surface features during the fall of 1659, an achievement made possible by his advancements in telescope manufacturing. His November ...

Astronomers have never seen Mars as up close as they will this week. The elliptical orbits of both Earth and Mars bring the planets relatively close every 18 months or so, but the Red Planet hasn't ...

In the fall of 1659, Christiaan Huygens observed the opposition of Mars, drawing what he saw. The result was the first drawings of the recognizable surface features of the Red Planet – an achievement ...