From the edge of space, the Sahara Desert looks like it belongs more on the planet Mars than Earth, with the red-tinged dune ...

A 2010 satellite image shows dozens of golden islands covered with strange parallel lines shining among the shallow waters of ...

Uranus is often called the strangest planet in our solar system. But a new study suggests that the gas giant may not actually ...

The icy shell of Titan, Saturn's largest moon, may possibly contain a six-mile-thick layer of methane ice beneath its surface ...

It may sound illogical, but growing evidence shows the benefits of testing yourself before you start learning new material ...