6.6/1010 votes#1 - World's Deadliest Threats
Season 6 Episode 1 - Aired 6/6/2019
The world's most dangerous threats are in top-secret locations all over the planet, and using cutting-edge technology, experts reveal the truth behind these sinister mysteries from space.
Director: N/A
Writer: N/A
5.9/108 votes#2 - Monsters of Diamond Desert
Season 6 Episode 2 - Aired 6/13/2019
An abandoned ghost town in a remote desert with a dark past. When a strange facility is spotted in Russia, experts investigate if it's hiding evidence of alien life. Cutting-edge tech reveals new clues to these sinister mysteries from space.
Director: N/A
Writer: N/A
7.0/108 votes#3 - North Korea Death Star
Season 6 Episode 3 - Aired 6/20/2019
When satellites spot a mysterious structure in North Korea, experts investigate if this sinister evidence points to a looming nuclear threat, and using cutting-edge tech, they reveal dark secrets from this strange place.
Director: N/A
Writer: N/A
7.4/108 votes#4 - Aliens of the Infinity War
Season 6 Episode 4 - Aired 6/27/2019
When a strange pattern appears in a field, experts wonder if its an extraterrestrial response to a message sent to an alien star cluster in 1974, and using cutting-edge science, they uncover its true origin.
Director: N/A
Writer: N/A
6.9/107 votes#5 - The Cave to Hell
Season 6 Episode 5 - Aired 7/11/2019
When a sinister cave is discovered in a remote corner of Iceland, experts uncover a secret underworld tunneling to unknown depths, and using cutting-edge tech, they investigate if this strange place could hold secrets of alien worlds.
Director: N/A
Writer: N/A
6.8/108 votes#6 - Terror of the Ice Snake
Season 6 Episode 6 - Aired 7/18/2019
In the white ice of Antarctica, satellites discover a mysterious trail of sinister black objects, and when experts discover that it's moving, they use cutting-edge tech to investigate who or what is behind this strange phenomena.
Director: N/A
Writer: N/A
7.2/109 votes#7 - Curse of Genghis Khan
Season 6 Episode 7 - Aired 7/25/2019
When an strange structure is discovered in the Gobi Desert, experts investigate if this mysterious site could reveal the whereabouts of lost treasure, which might change everything we know about Genghis Khan and the Mongol warriors who once lived here.
Director: N/A
Writer: N/A
6.6/108 votes#8 - The King at Roswell
Season 6 Episode 8 - Aired 8/1/2019
When a strange, red plane is discovered near the sight of the Roswell UFO incident, experts wonder if the aircraft has Nazi or extraterrestrial origins, and their investigation reveals new secrets about one of America's most famous faces.
Director: N/A
Writer: N/A
7.2/1010 votes#9 - Treasures of Monster Graveyard
Season 6 Episode 9 - Aired 8/8/2019
At a mysterious site in the Gobi Desert, experts have discovered a monster graveyard, and this groundbreaking find contains the treasures of the alien beasts that once lived in this strange world.
Director: N/A
Writer: N/A
The Best Episodes of What on Earth? Season 6
Every episode of What on Earth? Season 6 ranked from best to worst. Discover the Best Episodes of What on Earth? Season 6!
Satellites orbit Earth at 17,000 miles an hour, capturing images of our world that are breathtaking, but some are bizarre. This unique perspective reveals objects...
Genre:Documentary
Network:Science
Season 6 Ratings Summary
"World's Deadliest Threats" is the best rated episode of "What on Earth?" season 6. It scored 6.6/10 based on 10 votes. Directed by N/A and written by N/A, it aired on 6/6/2019. This episode is rated 0.7 points higher than the second-best, "Monsters of Diamond Desert".