CAMBRIDGE, MA. -- In the dead of a Martian winter, clouds of snow blanket the Red Planet's poles — but unlike our water-based snow, the particles on Mars are frozen crystals of carbon dioxide. Most of ...

New research shows that, much like Earth, the polar caps of Mars change with the seasons. In the dead of a Martian winter, clouds of snow blanket the Red Planet's poles -- but unlike our water-based ...

In some parts of the deep ocean, it can look like it’s snowing. This “marine snow” is the dust and detritus that organisms slough off as they die and decompose. Marine snow can fall several kilometers ...

Now, researchers at MIT and their collaborators have found that as marine snow falls, tiny hitchhikers may limit how deep the particles can sink before dissolving away. The team shows that when ...