Hannah Devlin

Nasa's Curiosity rover has detected organic molecules on Mars, including chemicals widely considered building blocks for the origin of life on Earth.

Read this exciting story from The Guardian April 22, 2026 issue. Nasa’s Curiosity rover has detected organic molecules on Mars, including chemicals considered to be building blocks for the origin of life on Earth.

The confidential health records of half a million British volunteers have been offered for sale on Chinese website Alibaba, the UK government has confirmed.

Giant “kraken-like” octopuses that used powerful beaks to crunch through bones of prey were among the most formidable predators of the Cretaceous oceans, according to research.

Study of fossilised beaks shows patterns of wear and suggests some ancient species were up to 19 metres long

There have been further listings of confidential health records of UK volunteers on the Chinese website Alibaba since the breach reported last week and the government is braced for further leaks, the science minister has said.

A common knee surgery for cartilage damage does not benefit patients and may lead to worse outcomes, a 10-year trial suggests.

A non-invasive scan for endometriosis has shown promising results in a trial, boosting hopes for far quicker diagnosis.

Exclusive: Sperm re-transplant offers hope that boys left infertile by chemotherapy could have biological children one day

Neanderthals used stone drills to treat cavities almost 60,000 years ago in what is the earliest known evidence of dental treatment.