There is a one in 250,000 chance that asteroid Apophis could hit Earth in 2036.
The asteroid, which is slowly approaching earth tonight will allow experts to examine risk, of how likely it is to hit.
Slooh, a web based sky service, collects images from observatories around the world.
Members of the public can view the event online via their website.
More top news
Police have launched a criminal investigation after two children died in a house fire in Birmingham.
The NI High Court rejected a legal challenge to the EU referendum result that proposed granting MPs a vote on Article 50.
The so-called Islamic State says that it has abducted nearly 8,000 families and taken them into Mosul to use as human shields.