The RMS Titanic sank more than 100 years ago, killing more than 1500 people in a terrible tragedy.It usually is agreed upon that what doomed the ship hailed as “unsinkable” was simply a high-speed collision with an iceberg. This showcase of the dangers of hubris, inspired one of the highest-grossing films of all time, Titanic.

While it goes undisputed that the ship certainly did hit an iceberg, perhaps there’s more to the story than just a single mistake. One Irish journalist and author, Senan Molony, offers up new evidence in his documentary, “Titanic: The New Evidence,” which will be aired in the U.S. on January 21st, on the Smithsonian Channel. An expert on the topic, Molony has been researching the Titanic for more than 30 years. He argues that the sinking of such an incredible ship was caused by a multitude of extraordinary factors coming together: fire, ice and criminal negligence, and that the Titanic never should have sailed.