The asteroid, called RX2 2019, is just one of many so-called "Near-Earth Objects" or NEOs that are dangerously approaching our planet. In total, NASA estimates that there are 796,901 known asteroids and 3,586 known comets in the solar system. The asteroid flew by today (Thursday, September 12) on a "Close Earth Approach" orbit that brought it very close to the planet. Flyby arrived just six days after NASA first observed the asteroid's orbit on September 6.
NASA said the mountain will approach us at 4.19 BST (3.19 am UTC) today.
Asteroid 2019 RX2 is a space of Apollo-type rock orbiting the sun within the solar system's inner circuits.
The asteroid follows a trajectory similar to the Asteroid 1
Sometimes NEO like RX2 will cross paths with the earth at various points in time.
Based on NASA's calculations, the asteroid was already approaching Earth six times before the first observation this year.
READ MORE: How often do asteroids hit Earth? What is the risk of impact?
The first flyby occurred 100 years ago on December 9, 1919.
Following today's close approach, space rock will reappear in the corners of the earth again in space 2024 and 2063.
NASA estimates the Asteroid RX2 measures somewhere in the range of 18.6 to 12 m in diameter.
On average, car sizes like this earth strike once a year.
Thankfully, the asteroid is small enough to safely burn up in the atmosphere without hitting the ground.
Every major and space rock can cause serious damage like the rock that exploded over Russia's Chelyabinsk Oblast in 2013.
READ MORE: NASA collaborates with ESA to stop giant asteroid threats
called Chelyabinsk Meteor only measured about 20.6 meters across but its blast blew out windows and injured more than 1,000 people with glass shards.
The good news is, N ASA did not expect the Asteroid RX2 to hit the planet today.
The asteroid approached our planet at a speed of about 5.34 km per second or 11 945 km / h (19 224 km / h).
At its closest, the mountain flew past distances of 0.01848 astronomical units.
READ MORE: This is what would happen if an asteroid hits Earth
A single astronomical measurement is about 149.6 million km, which is the distance from the Sun to Earth.
This means that the rock missed our planet by about 2.7 million miles – about seven times the distance to the moon.
NASA said: "As they orbit the sun, close Earth objects can sometimes approach the Earth.
"Note that a & # 39; near & # 39; astronomical passage can be very far away in human terms: millions or even tens of millions of kilometers."