K2, the brightest comet in our solar system, will swing by Earth

 A comet that has fascinated scientists for five years approaches its closest distance from Earth

There's a chance of spotting the C/2017 K2 PANSTARRS comet, also called K2, on Wednesday or Thursday

The C/2017 K2 PANSTARRS comet caught the attention of experts at the Hawaii-based Panoramic Survey Telescope

It had been traveling for millions of years from the frigid depths of the solar system, according to NASA

 it was discovered between the orbits of Saturn and Uranus about 1.5 billion miles from the sun.

It was observed at 17 times the Earth-sun distance, Jewitt said. 

Astronomers located K2 in a part of the solar system where sunlight is only 1/225th its brightness as we see from Earth 

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