What on Earth?

12:00 PM to 1:00 PM
Thursday 27 June
+

Season 4 Episode 4

An extraordinary lake in Canada that may hold the key to whether life exists on Mars. Plus, a Second World War aerial photo possibly containing a coded message left by a vicious Elizabethan religious fanatic and a bizarre six-mile-long scar that appeared in the Australian Outback overnight

What on Earth? airs on Sky History +1 at 12:00 PM, Thursday 27 June.
Topics
News ➝ Current Affairs
Documentary