Bacteria with artificial hydrogel skeletons could be used as tiny robots

King Tut’s bountiful tomb; music from fire

New technology gleans the gist of stories a person hears while laying in a brain scanner

Melting sea ice is opening new pathways through the Arctic such as the famed Northwest Passage. But it is also reducing visibility and potentially causing delays

Decades of data support the use and safety of puberty-pausing medications, which give transgender adolescents and their families time to weigh important medical decisions

Ova don’t make a woman, and sperm don’t make a man

New results from a U.A.E. orbiter suggest Mars’s moons may be pieces of the planet. A Japanese mission will tell us for sure

Chloroplasts’ choreography keeps plant cells powered

Many bird species are producing fewer offspring as global temperatures rise, and larger migratory species are particularly affected

An increase in activity in dying brains might be associated with last-minute conscious experiences, but scientists don’t know for sure

Carpets of gold, burrowing toads and fairy shrimp all depend on vernal pools—habitats that, most of the time, do not exist.

’Tis the season for hordes of blue jellyfishlike creatures to wash up on California beaches

Lañilawal, a Patagonian cypress that may be one of the oldest trees on Earth, needs greater protection if scientists are to understand its secrets of survival, an environmental scientist says

The country’s largest estuary is under critical threat from pollution and climate change. The question is: Can it be saved?

Gas stoves produce emissions that can harm human health and the environment. Experts answer questions about the dangers and how to limit them

A dying star swallowing a giant planet hints at the fate awaiting our solar system some five billion years from now

Hidden beneath the surface of the treasured strawberry is a unique branch of the evolutionary tree, where eight sets of chromosomes are better than two

Medication treatment for heroin addiction has come a long way since its pioneer died. But what would she think of the field today?

Developing an allergy to your dog or cat can be a nightmare, but hyposensitization could offer permanent relief

Planets might be more common throughout the universe than previously thought, results from the James Webb Space Telescope suggest