Find out what time The UnXplained: Mysteries of the Universe is on TV tonight and this week at the UK TV Listings Guide.
The UnXplained: Mysteries of the Universe is scheduled to air at these times (may include spoilers):
Veteran actor William Shatner explores the Earth and beyond, in search of the universe's most fascinating, strange and inexplicable mysteries. This opening episode documents unidentified objects witnessed by military pilots, extraterrestrial probes flying through the solar system and a potential alien home world that may be hidden in the darkness of space
Veteran actor William Shatner examines the possibility of contact with otherworldly intelligent life, and how man should react to and handle such a situation. Plus, the practicality of man travelling beyond the moon
William Shatner addresses Earth itself, which remains in large part a mystery to the eight billion people who live on it. He analyses how Earth came to exist, and the secrets of its survival and contemplates how long humans have left to call it 'home'
Earth's neighbour Venus has volcanoes, clouds of acid rain and a surface temperature hot enough to melt lead. Experts contemplate whether this makes Venus Earth's 'evil twin'
Humanity has worshipped the Sun since the beginning of time, and yet even with modern technology, so little is known about it. William Shatner considers whether unlocking the mysteries of the Sun can be the difference between life and death for human civilization
As the next era of space exploration begins it must be analysed what humans will find when reaching other planets, as well as the dangers faced when trying to conquer new frontiers. Presented by William Shatner
Earth's moon is only one of hundreds in the solar system. Veteran actor William Shatner explores the vast array of other moons, each presenting its own unique set of mysteries and wonders
Humanity has worshipped the Sun since the beginning of time, and yet even with the help of modern technology there is much that is still not known about it. Veteran actor William Shatner explores its creation and finite status. He outlines what is likely to happen as it nears its life-end