The Larsen C Ice Shelf broke off Antarctica on Wednesday, creating an iceberg nearly the size of Delaware.
It's one of the biggest iceberg breaks on record. Scientists have been monitoring the Larsen C shelf over the past few months using European Space Agency satellites, according to Reuters.
"The iceberg is one of the largest recorded and its future progress is difficult to predict," said Adrian Luckman, professor at Swansea University and lead investigator of Project MIDAS.
The iceberg will increase risk for ships sailing near the area.
In 2009, more than 150 passengers and crew members had to be evacuated from a ship after it hit a iceberg near the Antarctic peninsula.
Some think this is caused by climate change.
Others were alarmed by the news.
Earlier this year, we looked at what would happen when the iceberg finally broke free.