All Stories
- Health & Medicine
Evidence grows that normal childbirth takes longer than we thought
Another study finds that labor lasts longer than is traditionally taught — an insight that could mean fewer unnecessary cesarean deliveries.
- Astronomy
Speed of universe’s expansion remains elusive
A discrepancy between two measures of the universe’s expansion rate suggests the presence of some unknown astronomical feature.
- Anthropology
DNA solves the mystery of how these mummies were related
Two ancient Egyptian mummies known as the Two Brothers had the same mother, but different dads.
- Paleontology
Tiny scales in ancient lagoon may be the first fossil evidence of the moth-butterfly line
Fancy liquid-sipper mouthparts might have evolved before the great burst of flower evolution
- Astronomy
Spaceships could use blinking dead stars to chart their way
Timing signals from five pulsars allowed scientists to pinpoint an experiment’s place in space.
- Astronomy
Trio of dead stars upholds a key part of Einstein’s theory of gravity
A cosmic test fails to topple the strong equivalence principle.
- Astronomy
Pollution is endangering the future of astronomy
Astronomers discuss multiple threats from pollution that will make it harder to observe the night sky.
- Astronomy
See a 360-degree visualization of the center of the Milky Way
A 360-degree simulation, made with data from several telescopes, shows the center of the Milky Way as seen from the galaxy’s supermassive black hole.
- Animals
18 new species of pelican spiders discovered
A researcher used old and new specimens to discover 18 species of pelican spiders from Madagascar.
- Climate
Rising CO2 in lakes could keep water fleas from raising their spiky defenses
Rising CO2 in freshwaters may change how predators and prey interact in lakes.
- Health & Medicine
Not all strep infections are alike and it may have nothing to do with you
Add-on genes in some bacteria shape the way strains interact with the immune system.
- Planetary Science
Shallow ice sheets discovered on Mars could aid future astronauts
Exposed water ice on steep Martian slopes suggest there’s a lot within a meter or two of the surface.
