Elon Musk has reportedly offered his sperm to help colonize Mars. It's unclear if that's possible.

• Elon Musk offered his sperm to seed a settlement on Mars, anonymous sources told The New York Times.
• Secretive teams at SpaceX are investigating options for a Mars colony, including reproduction, according to the report.
• It's unclear whether it's possible to have babies on Mars due to high radiation and low gravity.

Elon Musk's obsession with Mars has reached new heights.