Scientists announce, through the "Science" journal, that they discover the source of a fast radio burst for the first time. FRB 180924, a non-repeating FRB which was detected in September 2018 using the Australian Square Kilometre Array Pathfinder, originates from a large galaxy known as DES J214425.25−405400.81 located 3.6 billion light-years from Earth.
Pope Francis celebrates a historic Mass in Kenya before delivering a stern environmental warning to the world. "It would be sad, and I dare say even catastrophic, were particular interests to prevail over the common good and lead to manipulating information in order to protect their own plans and projects," the Pope said, urging nations to reach agreement over curbing fossil fuel emissions.
The UN Conference on Sustainable Development begins in Rio de Janeiro, launching a new round of debate on the future habitability of Earth, its resources and people, 20 years after the first Earth Summit.