91av

Opinion

Read expert opinions from the world's leading scientific minds on everything from science's big conundrums and latest research outcomes to future science

Earth

Amazon activist: I will not give up the fight

Evicted at gunpoint from the vast Bolivian national park she helped set up, Rosa Maria Ruiz is still battling to protect threatened areas of rainforest

Opinion

Don’t fear the f-word in quantum physics

Opinion

A vote against the guinea worm

Opinion

Why we need to respect bacterial culture

Opinion

Health

Remember the lessons of past clinical trials abuses

Opinion

Space

Internet activist: Why I want to buy a satellite

Opinion

Life

Beware the seductions of sociable machines

Opinion

Why we have to teleport disbelief

Opinion

How to engineer a better future

Opinion

Winning over the Republicans

Scientists need to understand the agenda of the new power in Congress and engage with it, says Peter Aldhous

Opinion

Health

The medicine maker: I never thought my work could harm

Opinion

UK forensics cuts: International justice will suffer

Opinion

The deep value of mathematics

Opinion

Earth

Stick to your guns, climate scientists

Opinion