Deep inside Earth, researchers see signs that the solid inner core may be arranged in multiple chemical layers far below.

The interstellar comet 3I/ATLAS is racing away from the sun. Hubble and JWST track the object's strange composition: high CO2 ...

For decades, researchers have known that Earth’s inner core behaves strangely, acting both solid and oddly soft at the same ...

Oxygen began entering Earth's oceans around 2.32 billion years ago, and shallow seas followed within a few million years.