Science Channel has renewed its most-watched series, What on Earth?, for a third season.
The show uses state-of-the-art imaging technology from the more than 4,000 satellites that circle the Earth, along with analysis from experts within the military and intelligence communities and leading scientists, to search for answers about the planet's mysterious phenomena.
The series has investigated mysteries from strange geological occurrences to weird man-made structures.
In the season premiere, airing Tuesday at 9 p.m. ET/PT, experts investigate a city-size chunk of ice that disappears from Antarctica, the appearance of a large reptile-like creature off the coast of New Zealand and the possibility of treasure in the Grand Canyon.
Other topics this season will include examining the scary truths behind North Korea's veil of secrecy and the disappearance of Malaysia Airlines flight MH370.
What on Earth? ended its second season March 1 with a season average of 794,000 viewers in live + 3, making it the network's most-watched series of all time. Its Feb. 23 episode drew 878,000 viewers, making it Science Channel's No. 8 most-watched telecast ever.
The series is produced for Science Channel by Wag TV and is executive produced by Wag TV's Greg Chivers and Martin Durkin and Science Channel's Neil Laird.
Watch a clip from the premiere below.