Test your knowledge of the top global events and major scientific discoveries with today's five-question news challenge from the Planet Earth News Network.
Daily challenge for 2026-09-12
1. According to landmark oceanographic research published today, how do deep-sea metallic nodules on the Pacific abyssal floor produce what scientists call 'dark oxygen'?
2. A new immunological study revealed that vesper bats can host deadly pathogens without getting sick largely because of which unique genetic feature?
3. Scientists demonstrated that ultrathin diamond membranes can generate electrical charge under mechanical strain through which physical phenomenon?
4. In a notable domestic legal move, the U.S. Department of Justice issued federal subpoenas seeking voter records from which state to oversee election administration processes?
5. As its mission mandate approaches renewal, what primary challenges did diplomats address before the United Nations Security Council regarding Libya?
