Comment on This Day in History: Feb. 16

NASA explains why Mars helicopter Ingenuity crashed on its 72nd flight The Washington PostNASA Performs First Aircraft Accident Investigation on Another World NASA Jet Propulsion LaboratoryAfter crashing on Mars, NASA's Ingenuity helicopter could live on as a weather station for 20 years Space.comLessons learned from Ingenuity Mars helicopter will play into designs for follow-on craft CBS NewsNASA believes it understands why Ingenuity crashed on Mars Ars Technica

California child tests negative for bird flu, but health officials continue to warn against raw milk ABC NewsBird flu in California child related to virus in dairy cows, CDC says The Washington PostTechnical Update: Summary Analysis of the Genetic Sequence of a Highly Pathogenic Avian Influenza A(H5N1) Virus Identified in a Child in California | Bird Flu CDCMarin County child with possible bird flu drank raw milk: officials KRON4Rise in Avian Flu Cases Amplifies Concerns About Consolidation in Agriculture InsideClimate News

Could Cats Become a Vector for Bird Flu? The New York Times

Mathematician solves the moving sofa problem Phys.org

Dengue fever deaths surge in Caribbean and Americas due to climate crisis The GuardianDengue Fever At Record High In Americas The Weather ChannelRecord outbreak of Dengue fever in Central and South America BBC.comRecord dengue outbreak in Americas kills 7,700 this year, PAHO says ReutersDengue cases set a new record in the Americas this year as deaths also surge The Associated Press

Authorities say the mystery disease in Congo might be malaria but more testing is needed The Associated PressWhy the Mysterious 'Disease X' Outbreak Is So Hard to Investigate Scientific AmericanUnraveling the Mystery in the DRC’s Disease Outbreak—Is It Disease X? The New York Academy of SciencesMysterious illness, dubbed "disease X," has killed dozens of people in Congo, WHO says CBS NewsEU Commission adopts wait-and-see approach with mystery Congo virus Euronews