In the town of Sparta in Michigan, a farmer spotted what have been nicknamed "ghost apples" in their orchard. Pictures of the phenomenon have been widely shared on social media, such as this one on Tuesday, February 12, 2019. Experts have stepped in to offer an explanation: At first, the freezing rain and low temperatures encase an apple in ice. The rotten mush that was once the apple then seeps out the bottom of the icy sphere, leaving behind the so-called "ghost apple". [Photo: VCG]"

In the town of Sparta in Michigan, a farmer spotted what have been nicknamed "ghost apples" in their orchard. Pictures of the phenomenon have been widely shared on social media, such as this one on Tuesday, February 12, 2019. Experts have stepped in to offer an explanation: At first, the freezing rain and low temperatures encase an apple in ice. The rotten mush that was once the apple then seeps out the bottom of the icy sphere, leaving behind the so-called "ghost apple". [Photo: VCG]"

In the town of Sparta in Michigan, a farmer spotted what have been nicknamed "ghost apples" in their orchard. Pictures of the phenomenon have been widely shared on social media, such as this one on Tuesday, February 12, 2019. Experts have stepped in to offer an explanation: At first, the freezing rain and low temperatures encase an apple in ice. The rotten mush that was once the apple then seeps out the bottom of the icy sphere, leaving behind the so-called "ghost apple". [Photo: VCG]"

In the town of Sparta in Michigan, a farmer spotted what have been nicknamed "ghost apples" in their orchard. Pictures of the phenomenon have been widely shared on social media, such as this one on Tuesday, February 12, 2019. Experts have stepped in to offer an explanation: At first, the freezing rain and low temperatures encase an apple in ice. The rotten mush that was once the apple then seeps out the bottom of the icy sphere, leaving behind the so-called "ghost apple". [Photo: VCG]"

In the town of Sparta in Michigan, a farmer spotted what have been nicknamed "ghost apples" in their orchard. Pictures of the phenomenon have been widely shared on social media, such as this one on Tuesday, February 12, 2019. Experts have stepped in to offer an explanation: At first, the freezing rain and low temperatures encase an apple in ice. The rotten mush that was once the apple then seeps out the bottom of the icy sphere, leaving behind the so-called "ghost apple". [Photo: VCG]"

In the town of Sparta in Michigan, a farmer spotted what have been nicknamed "ghost apples" in their orchard. Pictures of the phenomenon have been widely shared on social media, such as this one on Tuesday, February 12, 2019. Experts have stepped in to offer an explanation: At first, the freezing rain and low temperatures encase an apple in ice. The rotten mush that was once the apple then seeps out the bottom of the icy sphere, leaving behind the so-called "ghost apple". [Photo: VCG]"