Why it's so special: These odd, fan-like features on the surface of Mars are geysers of gas and dust near the planet's south ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

One look at recent images released by the European Space Agency may cause you to wonder if spiders are on the cusp of ...

Photos captured in late October by NASA's Mars Reconnaissance Orbiter (MRO) show InSight resting on the Martian surface. While no longer active, the rover is providing researchers new data on how ...

Because the planet's orbit of the sun is slightly elliptical, there's a significant difference between Mars' closest and farthest point to the sun. —Space photo of the week: Look into Titan's ...