All Stories
- Animals
It takes guts for a sea spider to pump blood
Most sea spiders have hearts, but what really gets their blood flowing are gut contractions.
- Neuroscience
Pain promoter also acts as pain reliever
A pain-sensing protein also regulates activity of pain-relieving opioids.
- Paleontology
Ancient oddball invertebrate finds its place on the tree of life
Ancient marine invertebrates called hyoliths may be more closely related to modern horseshoe worms than mollusks, a fossil analysis finds.
- Planetary Science
The moon is still old
New analysis of moon rocks points to our satellite forming about 4.51 billion years ago, roughly 60 million years after the start of the solar system.
- Earth
Mapping the future of continents and batteries
Editor in chief Eva Emerson discusses how science provides new perspectives on the past and the future.
- Paleontology
Readers weigh in on dinos, dark matter and more
Ancient bird calls, the search for dark matter and more in reader feedback.
- Computing
Retracted result on network equivalence reinstated
Graph isomorphism result still stands, despite error.
- Earth
Evidence falls into place for once and future supercontinents
Shifting landmasses have repeatedly reshaped Earth’s surface. Researchers piecing together the past are now picturing a new supercontinent, due in 250 million years.
- Astronomy
Milky Way’s black hole may hurl galactic spitballs our way
Gas blobs formed in the wake of stars shredded by the black hole in the center of the galaxy could pass within several hundred light-years of Earth on their way to intergalactic space.
- Particle Physics
Dark matter still missing
The XENON100 experiment found no evidence of an annually varying dark matter signal.
- Chemistry
Better batteries charge forward
Next-generation batteries must hold more energy for longer periods at low cost. Several contenders may achieve some of these elusive goals.
- Astronomy
Earliest galaxies got the green light
Galaxies in the early universe might have emitted lots of green light, powered by large populations of stars much hotter than most found today.
