The BBC brings you all the week's science news.
Evidence that there is liquid water on the surface of Mars
As Antarctic ice melts seabed creatures may counteract climate change by capturing carbon
Scientists attempt to interpret yet more amazing features seen in pictures of Pluto
Fifteen partial skeletons of a new Hominin, Homo Naledi, discovered in deep African cave
Global study estimates there are three trillion trees on Earth
Study finds evidence that supports creating restrictions on trawling depths in EU waters.
Learning from Hurricane Katrina, applying coastal protection plans elsewhere.
How barnacles might help find missing flight MH370
Long term effects of radiation on survivors of Hiroshima atomic bomb.