A European-Japanese spacecraft has beamed back some of the best close-up photos yet of Mercury's north pole as part of only the second human survey of our solar system's innermost planet.

Starting tomorrow and continuing through April 25th, the planet Mercury will be visible to the naked eye in our sky.

the planets will appear across the sky to the south in the order of Mars, Uranus, Jupiter, Neptune, Saturn, Mercury, and Venus, according to CBS News. A clear sky is needed to view the planets ...