The idea of a multiverse — multiple realms of space differing in basic properties of physics — bugs some scientists. Others find it a real possibility that should not be ignored.
Genetic advances may make it possible to grow transplantable tissues in other species. That could solve immunity and availability issues, but raises ethical concerns.
They're a common index of technological creativity, but research finds they can impede rather than encourage it
A “policy physicist” explores practical ways to sniff out uranium processing from afar
How the body’s own defense cells can be turned into tiny, programmable assassins to battle cancers and other disorders
Countermarketing succeeds by exposing the motives behind the advertising of unhealthy products. It worked for teen smoking — could it do the same for junk food?
How we want to be perceived influences how we act, and that presents persuasion opportunities. But the social factors involved are not easy to unravel.
Inform, incentivize, legislate: There’s a ladder of escalating approaches for changing citizens’ behavior — and nudges for every rung
Our mark on Earth is so profound that some argue it’s time to bid goodbye to the current geological time period — the Holocene — in favor of a new one: the Anthropocene.
Fossilized remains of children have a lot to tell us about their short lives
Researchers are finally getting the tools to understand just how the microbial communities in and on our bodies affect health. But there are many mysteries left to solve — and many technological challenges.
Thinking of others enhances your well-being, while selfishness just adds to stress, studies show
A solid-waste specialist offers ways to halt the plague of pollutants choking the seas
Just how partisan is the press, and should the public be worried?
Astronomer Lisa Kaltenegger reckons the galaxy could contain as many as 40 billion habitable planets. Here, she speaks about the search for those faraway worlds and signatures of life.
In general, it promotes health. But it might not if your relationship is troubled or your partner is ill. Here's why, and what can be done.
Replacing the annual farming cycle with perennial crops could be better for soil, water and wildlife
An expert’s view on a common-sense diet: Don’t fuss over details, and put more plants on the plate