Planetary defence experts are keeping an eye on a newly-discovered asteroid that has a chance – albeit slim – of impacting Earth in 2032.

The European Space Agency's Planetary Defence Office says asteroid 2024 YR4 will skim by our planet on 22 December 2032, and has a 99% chance of passing safely by.

But, scientists say, a possible impact cannot yet be entirely ruled out, and it's too early to say where exactly on Earth any impact would occur.