A recently discovered comet is closer than it's ever been to Earth, and stargazers in the Northern Hemisphere finally get to see it.
Called Pan-STARRS, the comet passed within 100 million miles of Earth on Tuesday, its closest approach in its first-ever cruise through the inner solar system. The ice ball will get even nearer the sun this weekend — just 28 million miles from the sun and within the orbit of Mercury.
The comet has been visible for weeks from the Southern Hemisphere. Now the top half of the world gets a glimpse as well.