The discovery: Water vapor in the atmosphere of planet TOI-674 b. Key facts: This recently discovered planet, a bit bigger than Neptune and orbiting a red-dwarf star about 150 light-years away, places ...

A scientist simulated the contents of the ice giant worlds, and found that a fluid layer may explain each planet’s strange magnetic field. By Jonathan O’Callaghan Jonathan O’Callaghan previously ...

"In our study, we investigated how the chemical interactions between magma oceans and atmospheres affect the water content of young sub-Neptune exoplanets," says Werlen. To do this, the researchers ...

We might finally understand what’s going on inside Uranus and Neptune, and the answer is pretty surprising: They may each contain an ocean of water. “We didn’t really know anything before,” about ...