One of the Largest Comets Ever Seen
Is rapidly approaching Earth. The comet, C/2017 K2 (PanSTARRS), is now visible with a hand-held telescope.
Although It Orbits Away From
Earth once more in December, you can still see it all the way through September as it moves toward the sun.
Pan-STARRS survey instrument made the first observation of Comet K2 in 2017.
It Was the Furthest Active Inbound
Comet ever seen at that time. NASA classified it as "primitive" due to its 1.5 billion-mile distance from the sun.
Although Comet K2's Behavior And
Magnitude are not fully understood, some astronomers think that its nucleus will be at least 11 miles across.
Others, However, Contend That
Its diameter could range from 18 to 100 miles. Whatever it is, It is still the biggest comet ever.