The answer: about 900 years, accumulating roughly 6,400 metric tons annually as wind relentlessly blows sand through the desert. Star dunes make up just under 10% of the dunes in Earth's deserts ...

On Earth, star dunes are also found in China, Namibia, Algeria, Saudi Arabia and several U.S. states, including California and Colorado. But very similar structures can be found on Mars ...

Is there life on Mars? It’s bright, it’s red, it’s mysterious – and it’s closest to Earth ... that night (3 to 4 January) for a celestial firework display, as shooting stars stream ...

the Moon's relative motion in its orbit around Earth appears significantly faster than the movement of Mars in its orbit around the Sun. There are undoubtedly sharper images of Monday night's ...

The answer: about 900 years, accumulating roughly 6,400 metric tons annually as wind relentlessly blows sand through the desert. Star dunes make up just under 10% of the dunes in Earth's deserts ...