Archbishop Emeritus Desmond Tutu was admitted to hospital to receive treatment for a "stubborn infection", his wife, Leah, confirmed on Wednesday.
The Nobel laureate had largely withdrawn from the public eye, until recently when he met with Prince Harry, Meghan Markle and their newborn Archie during the royal visit in September.
He gained worldwide prominence for his strong opposition to white-minority rule under apartheid and won the Nobel Peace Price in 1984.
Last year, Tutu spent his 87th birthday in a Cape Town hospital.
NASA's probe soaring near sun reveals surprises about solar wind
Kasper said findings also showed that the wind rotates around the sun between ten and 20 times faster than models had predicted. He said: "We are both very happy to have been given the opportunity to work on Parker Solar Probe during our MSci project".
2019 set to be one of the hottest years on record
Levels of carbon dioxide in the atmosphere reached a record 407.8 parts per million in 2018 and continued to rise in 2019. The WMO's Petteri Taalas urged the world to quickly launch steps aimed at reducing temperatures before it is too late.
Missing person in Alice Springs
Tran and Hockridge allegedly walked at night to avoid the blistering heat which approached 104 degrees Fahrenheit during the day. A BODY, believed to be that of missing Alice Springs local Claire Hockridge, has been found by police in Central Australia .
He went on to chair the country's Truth and Reconciliation Commission after the transition to democracy brought Nelson Mandela to power in 1994.
Although he officially retired from public life in the late 1990s, the Archbishop continues to advocate for social justice and equality across the globe.
He has written several books over the years, including No Future Without Forgiveness (1999), and The Book of Joy: Lasting Happiness in a Changing World (2016).