Mars may have a solid inner core within its liquid outer core, according to a new analysis of the planet’s seismic activity. This could help solve several enigmas about Martian geology – but ...

However, the team from the University of Science and Technology of China and the University of Texas at Austin believe they have found preliminary evidence of a solid inner core within Mars ...

Is there life on Mars? Related stories For example, lava tubes on the moon can be as warm as 63 °F. That's plenty warm enough for life to arise inside. It's unclear if lava tubes on Mars would ...