Think you know your way around the solar system? From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order of the planets isn't just ...

It's been months in the making. Wait, I take that back. It's been years in the making. The last time we witnessed a similar planetary arrangement was back in December 2004. For the next three weeks ...

As residents of Earth, we’re well accustomed to the fact that there are 24 hours in a day. That’s approximately how long it takes the planet to move on its axis relative to the sun, known as a solar ...