All Stories by Emily Conover
- Cosmology
Scientists still can’t agree on the universe’s expansion rate
A mismatch in measurements of how fast the universe is expanding might not be real, a study hints.
- Materials Science
Latest claim of turning hydrogen into a metal may be the most solid yet
If true, the study would complete a decades-long quest to find the elusive material. But such claims have been made prematurely many times before.
- Astronomy
The highest-energy photons ever seen hail from the Crab Nebula
An experiment in Tibet spotted photons with over 100 trillion electron volts of energy.
- Life
‘Sneezing’ plants may spread pathogens to their neighbors
A “surface tension catapult” can fling dewdrops carrying fungal spores from water-repellent leaves.
- Particle Physics
Diamond detectors could aid the search for dark matter
Elusive dark matter particles could be spotted when they slam into electrons or atomic nuclei within diamond, scientists say.
- Particle Physics
Physicists have finally figured out how pentaquarks are built
The particles are made of up two smaller particles, stuck together like atoms in a molecule.
- Physics
This tabletop device turns the quantum definition of a kilogram into a real mass
The mini Kibble balance will measure 10 grams to an accuracy of a few ten-thousandths of a percent.
- Physics
In a first, scientists took the temperature of a sonic black hole
A lab-made black hole that traps sound, not light, emits radiation at a certain temperature, as Stephen Hawking first predicted.
- Math
Mathematicians report possible progress on proving the Riemann hypothesis
A new study advances one strategy in the quest to solve the notoriously difficult problem, which is still stumping researchers after 160 years.
- Physics
Spherical flames in space could solve the mystery of soot-free fires
In microgravity, flames are sphere-shaped. Tests of fire on the International Space Station are helping show how gases flow within flames.
- Physics
The kilogram just got a revamp. A unit of time might be next
After years of preparation, new definitions for the basic units of mass, temperature and more have now gone into effect.
- Quantum Physics
An experiment hints at quantum entanglement inside protons
Particles inside protons seem to be linked on a scale smaller than a trillionth of a millimeter.
