Zachary Quinto looks into the plausibility of interplanetary life, otherworldly strength and robotics with the capacity for reasoning.

Zachary Quinto explores everything from aliens to Atlantis in the new series.

A rover found building blocks for life on Mars, NASA announced this week, but our fascination with alien life on the red planet began long ago.

Let’s revisit five of the most believable UFO sightings of the 21st century.

Researchers have finally discovered why a six-inch skeleton found in Chile's Atacama Desert has such exceptional features.