BBC
Astronomer Sir Patrick Moore, host of The Sky at Night, has been admitted to hospital with heart problems.
The 83-year-old is being treated at a hospital in Chichester, West Sussex, after being admitted last night.
Sir Patrick, who was knighted in 2001, has presented The Sky at Night, the UK's longest-running TV show, since it began on the BBC in 1957.
He also won a Bafta for his services to television in 2001 and became a fellow of the Royal Society.
Sir Patrick is listed in the Guinness Book of Records as the longest-serving TV presenter.
He has taken part in TV coverage of events such as the first pictures of the far side of the Moon in 1959, the Apollo Moon landings of 1969 and the UK's total solar eclipse in 1999.
Away from the TV screen, he is a well-respected astronomer and was involved in the lunar mapping before the Nasa Apollo missions...
In 2004, Sir Patrick missed presenting The Sky At Night for the first time in 47 years after being struck by food poisoning.
Get well soon Sir Patrick