News
- Space
Iron sulfide may be keeping Mercury’s core toasty and its magnetic field alive
New estimates of how much heat Mercury’s core loses could explain why the tiny world has a long-lived magnetic field.
- Earth
How ancient oceans of magma may have boosted Earth’s oxygen levels
Chemical reactions involving iron could have increased the amount of oxygen-rich compounds in the early Earth’s mantle, lab experiments suggest.
- Space
Overnight changes in Mars’ atmosphere could solve a methane mystery
Overnight atmospheric changes on Mars can explain why two spacecraft measure vastly different concentrations of methane.
- Life
Human meddling has manipulated the shapes of different dog breeds’ brains
By analyzing the shape of different dog breeds’ brains, researchers show how humans have manipulated the animals’ brain anatomy.
