An arrowhead-shaped rock on Mars sporting features that may hint at ancient microbial activity on the Red Planet has left ...

More than 3 billion years ago, Mars intermittently had liquid water on its surface. After the planet lost much of its ...

The first private spacecraft mission to Venus will combat the planet's hellish conditions with the aid of a novel woven heat ...

Water once existed in abundance of at the surface of Mars. How much of that water has been stored in the planet's crust is still unclear, according to a new analysis.

The north pole of Mars is slowly sinking under the weight of an ice cap that only formed within the past few million years. And, in the process, it's telling us something about what the planet's ...

Mars’ thick crust may have been a hidden engine of geological activity, producing granitic magmas and sustaining underground ...

Mars' atmosphere moves differently from Earth's due to gravity waves. These waves affect air circulation at high altitudes.

The tornadoes, dust storms and wind-fanned wildfires have led to at least 40 deaths across the nation this past week.

Radioisotope thermoelectric generators do not rely on chemical reactions like the batteries in your phone. Instead, they rely on the radioactive decay of elements to produce heat and eventually ...

Musk—who has a history of setting unrealized goals for his companies—says he wants to send humans to Mars by 2029, though he ...