Why has there been an enduring fascination with exploring Mars throughout human history？What did visitors from Earth see when they looked down at planet Earth from the stillness of space? Human beings have dreamed of venturing into space for centuries and have succeeded in this endeavor. However, as human footprints approach Mars, we are getting closer, more than ever before, to unraveling the greatest of mysteries in human history. Join CGTN live with a group of top space scientists, astronauts, museum directors and science fiction producers for a special forum to explore the universe through a mix of fantasy and reality.