Regular, alternating layers in Gale Crater may have been deposited as the result of tides raised by a moon at least 18 times ...

There are two small moons in orbit around Mars today, but both may be remnants of a much larger moon that had enough of a gravitational pull to drive tides in the Red Planet's lost lakes and seas ...

Apple TV has grown into a real powerhouse over the last few years. With a smaller selection than some of the other entries on ...