Summer nights offer lots of interesting sights this month. Mercury and Mars are on show in the evening twilight. Both Uranus ...

NASA's Perseverance rover is digging deeper into Mars' geologic past as it begins grinding into rock surfaces to expose ...

Mars may be more like Earth than previously thought, despite having a thinner atmosphere and a dry, dusty surface.

One summer night in 1877, American astronomer Asaph Hall was looking through his telescope in Washington, D.C. Mars was at ...

Curiosity finds strange boxwork ridges on Mars that hint at ancient underground water. Scientists are now drilling for ...

I was stunned to see that the precinct has been marred by ugly modern cobalt blue signs and signposts that stand out ...

As the world grapples with climate change, water scarcity looms larger than ever. Discover the areas at risk and the ...

A hidden box-lattice suggests groundwater sculpted Mars long after surface water fled; Curiosity’s drills aim to confirm the tale.

Spring rains saved Southwest Colorado farmers from disaster following a lackluster winter snowpack. But water conservancy ...