Feathers evolved more than once
Ancient flying vertebrates thought to be furry were actually feathered. Andrew Masterson reports.
Changing the dynamics of getting older
In this issue: Manufacturing in space: factories of the future – Brian Cox on activism – A brief history of spacetime – ‘Osteo-biographies‘ of the dead at Stonehenge – Alex the Astronaut meets Alex, an Astronaut
issue
How many photons in the universe? Go on, have a guess
Calculations reveal enormous number, but with surprisingly dim effect. Andrew Masterson reports.
Mathematicians zero in on the birth of Hypatia
Probability theory deployed to recalculate the birth date of antiquity’s most famous female scholar. Gabriella Bernardi reports.
Science history: All hail the Sun Queen
Maria Telkes was a pioneer in both solar energy research and breaking down the masculine dominance of engineering. Jeff Glorfeld reports.
Critical find in understanding sex disorder development
Unusual ovary and testes formation may be triggered by ‘genetic regulator’. Paul Biegler reports.
