Saturn, Venus, Jupiter, and Mars are putting on a stunning celestial display this month, all visible together with the naked eye.

A Mars image shows a strange square formation. Some think it's artificial, but experts suggest natural causes.

According to NASA, four to five planets being visible across the sky at the same time happens only once every few years.

NASA shares an iconic image of carbon dioxide ice erupting in geysers when Martian winter turns to spring.