La médecine romaine était totalement impuissante face à l'ennemi le plus dangereux de l'Empire. Les légionnaires ne pouvaient pas non plus l'afronter glaive à la main, car il s'agissait d'un microscopique envahisseur tapi au fond de leurs entrailles.

Even low levels of widely used agricultural chemicals were linked to accelerated ageing, research suggests

The lifespan of fish appears to be drastically reduced by pesticides, a study has found.

Even low levels of common agricultural pesticides can stunt the long-term lifespan of fish, according to research led by Jason Rohr, a biologist at the University of Notre Dame in Indiana.

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© Photograph: Liam Marsh/Alamy

© Photograph: Liam Marsh/Alamy

© Photograph: Liam Marsh/Alamy

Un nerf synthétique qui se répare tout seul et qui déclenche des réflexes sur des êtres vivants ? On frôle les limites de l'éthique, mais la prouesse technique est indéniable.

Un nerf synthétique qui se répare tout seul et qui déclenche des réflexes sur des êtres vivants ? On frôle les limites de l'éthique, mais la prouesse technique est indéniable.

C'est un drame, tout simplement : la mission Mars Sample Return (MSR) vient officiellement d'être enterrée. Tout ces efforts et cet argent investis... pour absolument rien.

C'est un drame, tout simplement : la mission Mars Sample Return (MSR) vient officiellement d'être enterrée. Tout ces efforts et cet argent investis... pour absolument rien.

The Trump administration has signed $11 billion in agreements with African nations, in deals tied to foreign policy goals.

© Gulshan Khan for The New York Times

Environment minister says attacks on social media affect perceptions of meteorology and denigrate researchers’ work

Spain’s environment minister has written to prosecutors to warn of “an alarming increase” in hate speech and social media attacks directed against climate science communicators, meteorologists and researchers.

In a letter sent to hate crimes prosecutors on Wednesday, Sara Aagesen said a number of recent reports examined by the ministry had detected a “significant increase” in the hostile language that climate experts are subjected to on digital platforms.

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© Photograph: Marc Asensio/NurPhoto/Shutterstock

© Photograph: Marc Asensio/NurPhoto/Shutterstock

© Photograph: Marc Asensio/NurPhoto/Shutterstock

Researcher calls for guidelines for diagnosing prolonged grief disorder to be expanded to cover people who lose pets

Grief over the death of a pet could be as chronic as that for a human family member, research has shown, confirming what many people already know about their bond with their furry friends.

People grieving the loss of a pet can suffer from prolonged grief disorder (PGD), a mental health condition brought about by the death of a loved one, a survey published in the academic journal PLOS One has found.

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© Photograph: Westend61/Getty Images

© Photograph: Westend61/Getty Images

© Photograph: Westend61/Getty Images

Comment transformer une sphère (la Terre) en rectangle (une carte) sans foutre le bazar ? Eh bien, on ne peut pas, et le Groenland en profite depuis plus de 400 ans.

NASA completed its first-ever medical evacuation from space, bringing four astronauts back to Earth early after a health issue aboard the International Space Station.

A fascinating deep dive into the discovery, use and implications of a revolutionary new treatment

Few aspects of being human have generated more judgment, scorn and condemnation than a person’s size, shape and weight – particularly if you happen to be female. As late as 2022, the Times’s columnist Matthew Parris published a column headlined “Fat shaming is the only way to beat the obesity crisis” in which he attributed Britain’s “losing battle with fat” to society’s failure to goad and stigmatise the overweight into finally, shamefacedly, eating less. The tendency to equate excess weight with poor character (and thinness with grit and self-control) treats obesity as a moral as well as physical failing – less a disease than a lifestyle choice.

One of the great strengths of Reuters journalist Aimee Donnellan’s first book is its insistence on framing the discovery of the new weight-loss drugs within the fraught social and cultural context of beauty norms, body image and health. For those who need them, weekly injections of Ozempic, Wegovy or Mounjaro can be revolutionary. Yet for every person with diabetes or obesity taking the drugs to improve their health, others – neither obese nor diabetic – are obtaining them to get “beach-body” ready, fit into smaller dresses, or attain the slender aesthetic social media demands of them. Small wonder some commentators have likened the injections to “an eating disorder in a pen”.

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© Photograph: Alones Creative/Getty Images

© Photograph: Alones Creative/Getty Images

© Photograph: Alones Creative/Getty Images

Four astronauts emerge from capsule after Pacific landing, including crew member in ‘stable’ condition

Four astronauts from the International Space Station have returned to Earth a month earlier than planned after one developed a serious medical condition onboard the orbiting outpost.

Nasa confirmed that the SpaceX Dragon spacecraft carrying the US astronauts Zena Cardman and Mike Fincke, the Japanese astronaut Kimiya Yui and the Russian cosmonaut Oleg Platonov splashed down off the coast of San Diego at 12.41am local time (8.41am UK time).

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© Photograph: AP

© Photograph: AP

© Photograph: AP

A day after funding termination notices went out to more than 2,000 programs nationwide, the administration reversed itself and reinstated the money.

© Arin Yoon for The New York Times