A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

In further pictures, he explained the landscape looked flat in all the ... made up of images taken from a satellite in space that shows Planet Earth is round anyway, the two points of Two Rivers ...

Las Salinas Grandes is a massive salt desert in Argentina. The 2,300-square-mile field is filled with pools of water created by mining companies that harvest salt there. At first glance, the ...

Space travel may be out of reach for most people, but there are still many fascinating landscapes on our planet waiting to be explored. Earth itself offers a multitude of strange and otherworldly ...

A distinctive blue and green image of Earth reveals our planet's most remarkable features. At 4.54 billion years old, our home world is a venerable object. But it was only with the arrival of the ...