News
- Physics
A new dark matter experiment quashed earlier hints of new particles
Unlike its earlier incarnation, the XENONnT detector found no evidence of extra blips that scientists had hoped indicated new physics.
- Astronomy
The heaviest neutron star on record is 2.35 times the mass of the sun
The measurement helps refine the dividing line between neutron stars and black holes.
- Astronomy
How James Webb Space Telescope data have already revealed surprises
A distant galaxy cluster’s violent past and the onset of star formation in the more remote universe lie buried in the observatory’s first image.
- Paleontology
Mammal ancestors’ shrinking inner ears may reveal when warm-bloodedness arose
An abrupt shift in inner ear shape of mammal ancestors 233 million years ago, during a time of climate swings, points to evolution of warm-bloodedness.
