Two enormous asteroids as big as Burj Khalifa approaching towards earth today

Asteroid 2000 QW7

Enlarge Image Asteroid 2000 QW7

The US space agency NASA says two medium-sized asteroids will fly past Earth this weekend.

According to NASA's Center for Near Earth Object Studies (CNEOS), the massive asteroid that's now approaching Earth has been identified as 467317 (2000 QW7). To put its size into perspective, the tallest building on the planet is the Burj Khalifa in Dubai, which sits at a height of 2,717 feet (828 metres).

Reports, however, suggest that 2000 QW7 will not be a danger to the Earth as the asteroid will pass within 0.03564 astronomical units of the Earth - or 5.3 million km away from the surface.

These two big asteroids are 2000 QW7 and 2010 CO1 and have been observed by the NASA previously- once since 2000 and the other since 2010 and "their orbits are very well known", said Lindley Johnson, planetary defence officer and program executive for the Planetary Defense Coordination Office at NASA Headquarters.

During the flyby, they'll be about 14 lunar distances from Earth, or roughly 3.5 million miles away. Less powerful telescopes might also spot the space rock if combined with sensitive imaging devices to follow the asteroid's movements through the stars in the night sky.

NASA's Near-Earth Object Observations Program is monitoring 2000 QW7, but it's not expected to pose any threat to the planet.

The asteroid, named 2019 MO, was 13 feet in diameter and 310,685 miles from Earth.

Asteroid 2000 QW7 is estimated to be between 290 metres and 650 metres in diameter.

Near-Earth Objects (NEOs) are asteroids and comets that orbit the Sun, but their orbits bring them into Earth's neighborhood - within 30 million miles of Earth's orbit.

"These asteroids have been well observed-once since 2000 and the other since 2010-and their orbits are very well known", Lindley Johnson of NASA's Planetary Defense Coordination Office said in a statement.

One of the great things about having powerful observational tools to scan the heavens is that we have a good chance of spotting potential planet-killing asteroids before they actually get here.

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