German Chancellor Friedrich Merz and Brazilian President Luiz Inácio Lula da Silva met on the sidelines of G20 talks in South Africa on Saturday, after the German leader sparked outrage with comments on the Brazilian city hosting the COP30 climate talks. Sources close to the chancellor described Saturday's meeting, which focused on the UN Climate Change Conference in Brazil, tropical rainforest protection and the war in Ukraine, as "very harmonious," though it was unclear whether Merz’s controve

Super-Earth TOI-561b is about 40 times closer to its host star than Mercury is to the sun.

Wastewater testing can alert public health officials to measles infections days to months before cases are confirmed by doctors, researchers said in two studies published Thursday by the Centers for Disease Control and Prevention. Colorado health officials were able to get ahead of the highly contagious virus by tracking its presence in sewer systems, researchers wrote. The findings add to evidence that wastewater testing is a valuable weapon in tracking disease, including COVID-19, polio, mpo