The US is preparing for its first total solar eclipse in decades, which will see the Moon completely cover the Sun for a few minutes.
Temperatures will fall and skies will be darkened as the eclipse takes place.
The solar corona – the hazy aura of light that surrounds the Sun – will also be revealed.
The eclipse will travel across a 70-mile wide path that stretches from Oregon to South Carolina.
Everyone in North America will see at least a partial eclipse, but only those who are under the path of totality will witness the full effect.
But will Britons be able to join in the spectacle?
Will the total eclipse be visible from the UK?
The total eclipse will not be visible from the UK, but Britons will be able to see a partial eclipse just before sunset – provided that clouds do not get in the way.
The moon will cover 10 per cent of the Sun’s diameter and two per cent of its area.
The eclipse will start at around 7.30pm and will peak at 8.04pm in London and 7.58pm in Edinburgh. It will last for around 40 minutes.
When is the next solar eclipse in the UK?
There will be a solar eclipse on June 10, 2021 which will be annular across Canada and the Arctic (meaning that the Sun will appear as a ring), and will be 50 per cent partial in Scotland.
The closest most adult Britons will come to seeing a total eclipse at home will be on August 12, 2026. The eclipse, which will be total across Iceland, the Atlantic Ocean and Spain, will be 96 partial in Cornwall, falling to 91 per cent in Aberdeen.
The next total solar eclipse visible across the UK will be on September 23, 2090. It will follow a track similar to that of the 1999 eclipse and will occur near sunset.
SOLAR ECLIPSE 2017 PATH MAPPED
Do you need eclipse glasses for a partial eclipse?
It is only ever safe to look at the Sun without protection during a total solar eclipse.
Looking at the Sun during a partial eclipse – or at any other time – risks permanently damaging your eyesight.
If you are planning to watch Monday’s partial eclipse, invest in a pair of eclipse glasses, or use a pinhole camera.