3 billion birds, gone

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9/22/19 How an astrophysicist chased a star from the Halo games to real life Julián Alvarado Gómez has devoted his career to a star called Iota Horologii. His former life as a Halo video gamer helps fuel that devotion.   Read More We’ve lost 3 billion birds since 1970 in North America Scientists estimated the change in total number of individual birds since 1970. They found profound losses spread among rare and common birds alike. Read More Ancient DNA reveals the first glimpse of what a Denisovan may have looked like A controversial technique reconstructs a teenage Denisovan’s physical appearance from genetics. Read More How circling the globe has evolved in the 500 years since Magellan’s famous trip Humankind has found new and improved ways to circle the globe in the five centuries since Magellan set sail. Read More Air pollution can reach the placenta around a developing baby A small study of women living in Belgium found soot embedded in their placental tissue. Read More Gravitational waves from a ringing black hole support the no-hair theorem A new study of gravitational waves from merging black holes agrees with the predictions of the general theory of relativity. Read More Expanding ice slabs are increasing Greenland’s contribution to sea level rise Since 2001, melting and refreezing have created vast ice layers near the surface that could drastically amp up meltwater runoff and sea level rise.   Read More Can time travel survive a theory of everything? It’s not yet clear whether a theory that unites general relativity and quantum mechanics would permit time travel. Read More Babies born by C-section have more potentially infectious bacteria in their guts Microbial mixes in babies’ guts differ depending on birth method. Read More Why tumbleweeds may be more science fiction than Old West A tumbleweed is just a maternal plant corpse giving her living seeds a chance at a good life somewhere new. Read More Privacy policy  |  Update Profile  | Manage Subscriptions  |   Unsubscribe This email was sent by: Society for Science & the Public 1719 N Street NW Washington, DC, 20036, US