NASA photos appear to show a pyramid-like structure the same size as Giza on Mars, prompting speculation about whether an ...

A new theory is stirring debate about what may lie hidden beneath one of the world’s most famous ancient landscapes.

A strange formation spotted deep within a massive Martian canyon is once again fueling debate over whether something more ...

Mars has a lot of rocks. In fact, Mars has so many rocks that have undergone all sorts of weathering over the eons that, ...

IMAGES of an unusual pyramid-shaped structure on Mars that look like those in Egypt have reignited wild theories about aliens ...

Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a discussion of advanced Martian ...

What if the most important clue inside the Great Pyramid is not a hidden chamber, but a few strokes of red pigment left by ...