A massive asteroid nearly three times the size of Arthur's Seat is set to zip past Earth on Sunday.
Space experts at NASA have been tracking the Near Earth Object (NEO) which is listed as "potentially hazardous".
Asteroid 153201 (2000 WO107) is estimated to be anywhere up to 820 metres, dwarfing Arthur's Seat which stands at 251m.
The space rock, which is actually classed as a minor planet, will zip past Earth this Sunday, November 29, experts estimate.
It's estimated to between 370m and 820m in height, or 1,213 and 2,690 feet.
NASA say the asteroid will be travelling at around 56,000 miles per hour, and will pass Earth at a closer distance than the moon. Despite this, skywatchers are unlikely to catch a glimpse of the asteroid as it passes by.
The asteroid is estimated to come within 242,000km from Earth, for comparison the moon sits around 384,000km away.
It will pass at around 10:09am on Sunday.
Earth has not seen an asteroid of a size which could devastate the planet for over 60 million years, but scientists warn asteroids up to 1km in diameter can change course and cause damage.
Objects which come within a set distance from Earth are monitored by NASA and other agencies, who are currently tracking around 2000 such objects.
