A space rock measuring approximately 60 metres across could strike the lunar surface in 2032, potentially creating a visible flash from Earth.
The asteroid designated 2024YR4 would become the most substantial object to collide with our natural satellite in five millennia.
Should the impact occur on the moon's Earth-facing hemisphere, observers might witness a brilliant flash lasting several seconds without optical aids.
Dr Paul Wiegert, who teaches astronomy and physics at Western University in Ontario, told CNN: "If YR4 strikes the moon on the nearer side so we can see it, there should be a bright flash."
The collision would carve out a depression spanning roughly 1.6 kilometres, comparable to the famous impact site in Arizona.
Following the strike, lunar debris ejected into space could subsequently enter Earth's atmosphere, creating spectacular meteor displays.
Astronomers first identified 2024YR4 late last year, initially calculating a potential Earth impact on December 22, 2032.
The space rock triggered alerts from the International Asteroid Warning Network and the Space Mission Planning Advisory Group due to its dimensions and collision probability.
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A space rock measuring approximately 60 metres across could strike the lunar surface in 2032, potentially creating a visible flash from Earth
| GettyFebruary marked peak concern when Earth impact likelihood reached 3.1 per cent, representing the highest risk ever recorded for an observed asteroid.
However, subsequent measurements from ground-based observatories and the James Webb Space Telescope refined the object's trajectory.
By June, enhanced calculations had reduced Earth impact probability by nearly 20 per cent according to Nasa, whilst revealing a four per cent chance of lunar collision with the moon.
The asteroid currently remains hidden from telescopes due to solar interference, with visibility expected to resume around 2028.
February marked peak concern when Earth impact likelihood reached 3.1 per cent
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Space infrastructure faces potential hazards from the impact, with lunar-based personnel and equipment particularly vulnerable.
Earth-orbiting satellites and spacecraft operating near our planet might encounter debris fields resulting from the collision.
The asteroid measures roughly the height of a 15-storey building, according to March observations by the James Webb Space Telescope.
Scientists aim to analyse similar-sized objects to better understand their composition and potential dangers.
Researchers continue evaluating possible mitigation strategies for the anticipated lunar impact
| GettyDr Wiegert noted that protective measures traditionally focused on Earth might require expansion.
He explained: "We're starting to realise that maybe we need to extend that shield a little bit further.
"We now have things worth protecting that are a bit further away from Earth, so our vision is hopefully expanding a little bit to encompass that."
Researchers continue evaluating possible mitigation strategies for the anticipated lunar impact.