Mars’s axis of rotation is tilted 25.2 degrees relative to the plane of the planet’s orbit around the sun, which helps give Mars seasons similar to those on Earth. Whichever hemisphere is ...

"Scientists think that ice moves around as the tilt of Mars' axis changes," said Dundas, "but for ice to accumulate near the equator requires much wetter conditions." Flooding seems like a logical ...

The levels of carbon dioxide on Mars fluctuate based on the planet's tilt in relation to the sun. As Earth spins on a ...