With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its ...

Did you know that Mars at opposition is a special time when Earth and Mars are closest? This happens when Earth passes ...

Scientists have considered placing Mylar disks, with a diameter of 155 miles and a weight of 200,000 tons, to reflect sunlight onto Mars and heat the surface. The idea is that over many years ...

Massive and dense structures have been discovered beneath the surface of Mars, leaving experts intrigued. The first of these ...

Mars has northern and southern hemispheres like Earth, but their defining characteristics are markedly different, a ...

Mars is a strange place and any humans born there are bound to look radically different over thousands or even hundreds of ...

Judging, however, by its brilliancy, the diameter of the sec-1 ond satellite ... It will also lead to more exact data relative to the mass of Mars. In a former article on the dis covery of these ...

The Popular Astronomy Club meets the second Monday of the month at 7 p.m. at the Butterworth Center in Moline. All are ...