The ripples suggest that the lake was free of ice at one point.

For many, the sight of vast ice caps at Earth’s poles seems like an unshakable feature of our planet. Yet, a new study suggests that these icy giants are nothing more than a temporary, rare occurrence ...

and the planet cooled. Except for the scraps frozen into the polar caps, its water was lost to space or stored away as subsurface ice. And this all happened billions of years ago. The early Mars ...

The red planet Mars, named for the Roman god of war ... Not so today: Though water ice abounds under the Martian surface and in its polar ice caps, there are no large bodies of liquid water ...

Everyone knows that Earth is capable of providing beautiful, snowy landscapes, but it isn't unique in that. It snows on Mars, ...

The above image shows a 20-meter-long chunk of frozen carbon dioxide falling off a cliff. Rising temperatures during the ...

Earth’s ice caps exist due to a rare combination of cooling processes. Without these, Earth would likely remain warm and ...

Like Earth, Mars has polar ice caps, volcanoes, canyons and deserts ... Although Mars has much the same land mass as Earth, the planet is much smaller (about half the size).

Why the fascination with Mars? Here's everything you ... It's about half our planet's size, has variable seasons, polar ice caps, and plains and gullies possibly shaped by water flow.

We have wondered for centuries whether our neighbouring planet is home to life ... There is plenty of water on Mars, but most of it is frozen in the polar ice caps and buried underground.

Astronomers have identified sulfur as a potentially crucial indicator in narrowing the search for life on other planets.