Recent high-resolution imaging of Mars has unveiled deep ‘scratches’ and craters that suggest the Red Planet once experienced an ice age. These geological features, which include eroded valleys and ...

Mars is half the size of Earth, with one-tenth of our planet’s mass, and at the nearest point in its orbit is over 33 million miles away. Yet new research highlights the extraordinary influence the ...

Earth’s ice ages have long been blamed on subtle wobbles in our own orbit, but new research suggests a distant accomplice is quietly helping to set the tempo. Mars, sitting millions of miles away and ...

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Compared with Earth, Mars is tiny, yet it seems to have an outsized effect on our planet’s climate cycles. Similar small planets could affect the climates of worlds beyond our solar system, which we ...