Picture yourself as a NASA rover on Mars. As the Sun lowers itself towards the horizon, the pinkish sky gives way to a blue sunset. If you were truly there, you might admire a night sky without any ...

Scientists have discovered a mysterious hole on the surface of Mars, and they have no idea what lies inside it. This pit, located in the Arsia Mons region — one of Mars’ giant volcanoes — could ...

The HiRISE camera on NASA's Mars Reconnaissance Orbiter captured this image to determine if any underlying voids or associated faults can be observed in this part of Arsia Mons. Pits like this can be ...