The history of the planet’s all-important magnetic field has scientists ramping up simulations and lab experiments to resolve a baffling paradox.
The first known exoplanets were discovered around pulsars — probably one of the least likely places to have been found, astronomers now say.
Farm dust prevents allergies by turning on an anti-inflammatory enzyme in the cells lining mice’s lungs.
From lions to plankton, predators have about the same relationship to the amount of prey, a big-scale ecology study predicts.
50 Years Ago
Two stars once thought to be the coldest known are actually scorching compared with some truly frigid brown dwarfs.
Visitors to the Green Bank Telescope in West Virginia get a close-up with the world’s largest movable land object.
New Guinea pottery points to a key meeting of island natives and seafarers at least 3,000 years ago.
Reviews & Previews
Researcher Tim Spector skewers conventional thinking about weight loss in ‘The Diet Myth’
A pair of black holes left over from a galaxy collision might live in the nearest quasar to Earth.
In the 1940s, Frances Glessner Lee’s dollhouse murder dioramas trained investigators to look at crime scenes through a scientific lens.
Light sliding along the boundary of a black hole encodes everything that ever fell inside, suggests Stephen Hawking in a new but incomplete proposal.
A new experiment provides the most robust proof that quantum mechanics doesn’t follow the rules we take for granted in everyday life.
Precision dating confirms that Siberian volcanic eruptions could have triggered the Permian extinction.
For almost 30 years, a man with an immune deficiency has been shedding poliovirus strains that have evolved from the version he received in a vaccine.