7 wonders of the solar system. Take an exhilarating, unprecedented tour of the seven most amazing wonders of our solar system, including Saturn's famous rings, which contain mountain ranges that rival the Alps, and Jupiter's Great Red Spot, the eye of the biggest storm in the solar system. Mars: the new evidence. In the last few years, the Red Planet has yielded many clues that life may once have existed on Mars--and may exist there today. Most intriguing of all, though, are the seasonal plumes of methane that may point to bacteria living below the surface. Magnetic storm. It bursts from the sun with the power of 10,000 nuclear weapons, and when it hits our planet, it could wipe out electrical power, television, radio and military communication, creating the largest disaster in recorded history. What causes this magnetic storm? And is there anything we can do to prevent it? Time travel. The laws of physics do not tell us it's impossible., but the bizarre consequences of going into the past and altering the future make for mind-bending science. Explore the possibility of time travel, both to the past and the future, as HISTORY hunts for an Earth-like planet 4.3 light years away.