Asteroid AL12 is flying towards our planet at breakneck speeds of about 17.65km per second or 39,481mph (63,540km/h).
But the good news is NASA does not expect the space rock to come crashing into our planet any time soon.
Tomorrow, AL12 will approach Earth from a distance of about 0.04660 astronomical units.
A single astronomical unit is the distance between our planet and the Sun, or about 93 million miles (149.6 million km).
Asteroid AL12 will slash this down to just 4.3 million miles (6.97 million km).