Fractured ice sheets on Mars

Where the two hemispheres of Mars meet, the planet is covered in broken-up terrain: a sign that slow-but-steady flows of icy material once forged their way through the landscape, carving out a fractured web of valleys, cliffs ...

Natural disasters contribute to holiday travel delays

Holiday travel is stressful enough—we know we're supposed to arrive at the airport early, give extra time to drive places, and expect delays. But what about checking the weather on the other side of the country, routing ...