NASA's InSight Lander Reveals a Surprise at The Very Core of Mars - ScienceAlert

1. NASA's InSight Lander Reveals a Surprise at The Very Core of Mars  ScienceAlert
2. Seismic detection of a 600-km solid inner core in Mars  Nature
3. NASA Marsquake Data Reveals Lumpy Nature of Red Planet’s Interior  NASA (.gov)
4. Marsquakes indicate a solid core for the red planet, just like Earth  AP News
5. Dozens of mysterious blobs discovered inside Mars may be the remnants of 'failed planets'  Live Science