M44-5YN was a planet in the Pegasus galaxy which contained a Stargate in a valley, near a glacier. The planet was suffering from the effects of global warming, possibly as a natural occurrence, since there is no evidence to suggest the planet is home to a race of people. In 2008, a team lead by Dr. Nichols set up a base near the glacier as it is melting. One day Nichol's team was late to report back, due to the fact that the glacier had melted enough to release the water trapped inside of or behind it, flooding the valley and submerging the Stargate.