The American space agency NASA is tracking a giant asteroid rocketing towards Earth at 11,200mph.
The enormous asteroid looks set to shoot past earth at some point this Sunday at around 8:20am, according to the Daily Star.
It comes after skywatchers saw glimpses of the Falcon 9 rocket which launched last weekend.
It is estimated to be between 250m and 570m (820ft and 1870ft) - making it at least as tall as Arthurs Seat which stands at 251m.
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According to SpaceReference.com, that makes it larger than 90% of asteroids.
NASA have classed the asteroid as an "Aten asteroid", which means it is following a very wide orbit around the Sun.
Scientists are sure Earth will be completely safe from the giant space rock, but NASA's Centre for Near Earth Objects is continuing to track this asteroid and others which are expected to come within a set distance from Earth.
NASA have named the asteroid 163348 (2002 NN4), and believe it to be travelling at a speed of 11,200 miles per hour.
It will approach Earth at a distance of 13.25 Lunar Distance - roughly 3.2 million miles away from Earth.
Despite the distance, NASA scientists deems the space rock a Near Earth Object and will track it carefully.
Once the asteroid has safely zipped past Earth, we can next expect it to visit our planet in 2024, NASA estimates.
Astronomers are currently tracking nearly 2,000 asteroids, comets and other objects which threaten our planet.
Six of these, which are comparatively small compared to 163348 (2002 NN4), will pass by earth at less than 5 Lunar Distance in the next 30 days.
