Like HowStuffWorks on Facebook!

Bad Universe: LA Invasion

What would aliens look like if they were to invade Earth? Phil Plait explains the different scenarios of an alien invasion.


Most Watched in Supernatural Science

Most Watched in Supernatural Science
2:45

Science of the Impossible: ESP Military Intelligence

Most Watched in Supernatural Science
3:00

Science of the Impossible: Telekinesis

Most Watched in Supernatural Science
2:38

Science of the Impossible: Hemi Sync

Most Watched in Supernatural Science
2:06

Science of the Impossible: Healing by Willpower

Most Watched in Supernatural Science
1:57

The Haunted: The Turning Point

Most Watched in Supernatural Science
1:44

Conspiracy Test: Near Death Experience and God Helmet

Most Watched in Supernatural Science
2:09

Lost Tapes: Skinwalker

Most Watched in Supernatural Science
2:57

Science of the Impossible: ESP Sixth Sense

Most Watched in Supernatural Science
2:54

Science of the Impossible: Psychic Power

Most Watched in Supernatural Science
3:00

10 Ways to Contact a Ghost: Conducting a Seance

Most Watched in Supernatural Science
2:46

Best Evidence: Roswell Debris Evidence

Most Watched in Supernatural Science
1:35

10 Ways to Contact a Ghost: Succubus


Recent Videos in Supernatural Science

Recent Videos in Supernatural Science
2:14

Alien Encounters: Frank Drake and Nick Sagan Meet Again

Recent Videos in Supernatural Science
2:07

Alien Encounters: A Space-Powered Alien Ship

Recent Videos in Supernatural Science
2:39

Alien Encounters: Earth's Most Alien Places

Recent Videos in Supernatural Science
2:30

Alien Encounters: Will Aliens Have Bodies?

Recent Videos in Supernatural Science
2:10

Finding Bigfoot: Does Ranae Believe?

Recent Videos in Supernatural Science
1:50

Finding Bigfoot: Never Before Seen Footage

Recent Videos in Supernatural Science
1:45

Finding Bigfoot: Bigfoot Mating Call

Recent Videos in Supernatural Science
2:17

Finding Bigfoot: Hunter Spots Ten Foot Sasquatch

Recent Videos in Supernatural Science
2:08

Finding Bigfoot: Bigfoots Prefer Blondes

Recent Videos in Supernatural Science
2:11

Finding Bigfoot: Calling for Sasquatch

Recent Videos in Supernatural Science
2:31

Finding Bigfoot: Sasquatch in My Backyard

Recent Videos in Supernatural Science
2:07

Finding Bigfoot: Crying Baby Bigfoot Bait