Did you know that planet-killing asteroids come along only once every few million years? 

As these space rocks revolve around the Sun in their elliptical orbits, the asteroids also rotate, sometimes quite erratically, tumbling as they go, according to NASA.

Colossal asteroids have been responsible for some of the biggest events in history.

NASA keeps a watch on these asteroids by studying data collected by various telescopes and observatories such as the Pan-STARRS,

the Catalina Sky Survey and the NEOWISE telescope. NASA also has a NEO Surveyor mission planned for launch in 2026 to gain even greater in-depth data using a new orbiter.

NASA can track the orbital path of the asteroid using this infrared data and can even predict its orbit years into the future.

Asteroid 2022 UP2 is already on its way towards Earth travelling at a staggering speed of 21549 kilometers per hour and is expected to just miss the planet today, November 14.

It will make its closest approach to Earth at a distance of 4 million kilometers, according to NASA.

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