Richard Gray

They are astonishingly beautiful moments of human endeavour, but not all spacewalks go to plan – astronauts and cosmonauts have become stuck in hatches and nearly drowned.

The wreck of the Titanic is showing clear signs of decay on the sea floor miles below the surface. What will its final fate be?

La protección y el instinto depredador son algunos de los motivos.

Chanel No 2: The many reasons why dogs love to roll in poo

To celebrate World Sleep Day, here’s our science-based guide to getting the best slumber you can – from varying sleep with the seasons to taking inspiration from the past.

Amid allegations that an official photograph of the Princess of Wales had been “manipulated”, here are some clues that can help you identify if an image has been altered or faked.

Isolated for six months one winter, a group of scientists changed how they spoke.

The air we breathe can have profound effects on our physical and mental health. Is there any way of protecting yourself from this pervasive problem?

O mistério em torno do motivo de os nossos cocôs às vezes permanecerem na superfície da água do vaso sanitário e outras vezes afundarem sem deixar vestígios parece estar sendo desvendado - e pode ser uma oportunidade para aprendermos mais sobre a saúde das bactérias que vivem no nosso intestino

From new artificial islands to the environmental devastation caused by the breach of Ukraine’s Kakhovka Dam – this is how humanity has changed the face of our planet this year.

The mystery of why our number twos sometimes bob to the surface of the toilet has been solved – and it could be a window into the health of the bacteria living in our guts.

The cacophony of seismic activity that ripped a 4km-long fissure in the Reykjanes peninsula has been turned into audible clips.

With the victor of this year’s Fat Bear Week due to be announced, we look at the fortunes of some past champions and why one is missing.

Nasa astronaut Frank Rubio has just returned from a record-breaking 371 days in space onboard the ISS, but the trip may have altered his muscles, brain and even the bacteria living in his gut.

O que acontece com o corpo humano após mais de um ano no espaço?

The boots worn by astronauts on the Artemis missions will need to protect them from difficult terrain and extreme temperatures, but what about the prints they leave behind?

The disappearance of the submersible Titan during a visit to the wreck of the Titanic has raised questions about just what risks are involved in such an expedition to the deep.

New environmental protections might restrict the use of some long-lived chemicals known as PFAS, but these are only the tip of a very persistent iceberg.

Billions of years ago the average Earth day lasted less than 13 hours and it is continuing to lengthen. The reason lies in our relationship to the Moon.

In the aftermath of the Turkey-Syria earthquake, scientists are stepping up their search for the early warning signs of these unpredictable of natural disasters.