Equality in science: A mission still not accomplished
In the 1960s three African-American women helped put astronauts into orbit. Hidden Figures tells their story, but women in science are still battling inequality
Planet search more than a numbers game
The Kepler Space Telescope has identified 1,284 new planets, but searching for life forms on them will be more challenging and complex.
Why science matters: Five of the best stories
A potential ebola vaccine, water on Mars, record warming, 3D body parts and the cancer risks involved in eating processed meat all made 2015 science headlines.
An astrophysicist meets The Martian
Does Ridley Scott's new movie pass the science test? Mars-obsessive and astrophysicist Dr Katie Mack finds out.