More than 40,000 people are expected to attend the global climate change summit as questions swirl about the United States' future involvement.

Brazil announced details of its new climate change pledge late on Friday night that sets a target to lower the country's greenhouse gas emissions by 2035, which it will present during the United Nations climate summit COP29 in Azerbaijan,

The three NASA astronauts that were part of the SpaceX Crew-8 aboard Crew Dragon Endeavour will speak publicly today for the first time since their mission returned to earth late last month.

Details were not revealed about who and why one of the three NASA astronauts of the SpaceX Crew-8 mission had to be hospitalized after their return to Earth last month, but all three discussed Friday the slow recovery each faces after spending more than 235 days in space.