Mars doesn't have tectonic plates, the mountain-making force behind most of Earth's rocky peaks. But that doesn't mean the ...

NASA scientists have discovered additional evidence that Mars once underwent plate tectonics, slow movement of the planet’s crust, like the present-day Earth. A new map of Mars’ magnetic field made by ...

The researchers' findings were based on seismic readings from NASA’s InSight lander on Mars. Scientists were able to identify 8 Martian quakes with strong enough seismic activity that allowed them to ...

In a breakthrough that could change how we see our “twin” planet, NASA has discovered that Venus may not be the hot, dead world we thought it was. Instead, its surface could be alive with movement, ...