A key spacecraft in Europe's new multi-billion-euro Earth observation programme blasts into orbit.
Author: BBC News - Science & Environment
Five ways to avoid breathing polluted air
Simple tips to avoid inhaling air from traffic and other common sources of pollution.
Satao, one of the last ‘giant tusker’ elephants, killed in Kenya
There are fewer than 30 such animals left in Africa after Satao II was apparently shot.
William Shatner’s guide to Mars
The Star Trek actor takes you on a fact-fuelled cosmic journey to the mysterious Red Planet.
Million euro prize for cracking brain’s reward system
Three UK-based scientists who have studied the brain’s reward centre win a prestigious prize worth 1m…
Coal collapse drives down UK carbon emissions
A collapse in the use of coal has driven UK carbon emissions down to levels barely…
IBM’s online quantum machine gets faster
IBM wants to open out quantum computing to the business community and increase usage for programmers.
Liver transplant pioneer Thomas Starzl dies aged 90
The surgeon carried out the first successful liver transplant in 1967 and helped normalise the surgery.
This boy’s backpack could change you
14-year-old Logan is helping monitor his city's air - and the results may change your habits.