In a nutshell Mars likely never developed a solid inner core during its early history, meaning its magnetic field was generated by a fully molten core, unlike Earth’s layered core structure. This ...

In our solar system Earth and Mars are in the box ... The logarithmic scale used initially here allows for an easier comparison of the exoplanets. The linear scale shows how shallow the ...

Two NASA rovers on Mars recently made two independent discoveries further indicating that ancient life may have once existed ...

If you think Earth ... On Mars the surface is rocky and desert-like. So wind can stir up loose soil, creating giant dust devils twice the height of Mt. Everest. But that's nothing compared to ...

The molecules may be remnants of fatty acids, which form cell membranes in Earth’s organisms, though they might have formed through a non-biological process ...

Small in comparison to the gas planets found further from the Sun, they also rotate at a more sedate pace and have few moons… The four rocky planets are Mercury, Venus, Earth and Mars.