News
- Physics
The glue that binds a proton may be key to its identity
Gluons do more than hold protons together. They may also help define the proton’s identity through a quantum property called baryon number.
- Space
Stars’ plasma spurts may be blocked by magnetic fields
The sun frequently flings plasma into space, but sightings of such eruptions on other stars are rare. Magnetic fields could explain why.
- Paleontology
These mammal ancestors birthed live young far earlier than thought
Growth rings on a fossil bone suggest at least one mammal ancestor gave birth to live young rather than laying eggs 236 million years ago.
