Researchers believe they’ve discovered artificial structures on Mars, home to extraterrestrial civilizations, in this clip from The UnXplained. | The Unxplained Zone

While going through satellite images of Mars, researchers spotted the profile of a Badlands Guardian. Theorists believe that the culture that created this impossible Martian structure could be directly connected to the human race. | Ancient Aliens

As we head into a new year on Earth, scientists have recently marked a new one on Mars. But instead of a winter wonderland, the Red Planet’s northern hemisphere brings an active spring thaw. From avalanches to gas explosions, see some of the seasonal changes captured by the Mars Reconnaissance Orbiter in the latest "Mars Report." Learn more: go.nasa.gov/3VPBaWo | NASA Mars

Caves found on Mars Surface? This formation on the surface of Mars looks like a cave or deep opening, raising many questions. Scientists believe such features could be lava tubes, formed long ago when molten lava flowed beneath the surface. These caves are important because they may protect against radiation and extreme temperatures. Some scientists even think Martian caves could be the best places to search for signs of past life. Mars continues to reveal mysterious features hidden beneath its