- Nasa's InSight lander has detected unusual blobs deep within Mars, which scientists suggest may be remnants of the planet's ancient ‘embryo’.
- These findings, published in the journal Science, could alter our understanding of how rocky planets like Mars, Venus, and Earth were formed.
- Seismic data from marsquakes revealed that Mars's mantle is not smooth but contains rough, ancient fragments up to 4km wide, preserving evidence of the planet's violent early history.
- Researchers believe these fragments are solidified remnants from vast magma oceans created by colossal impacts during Mars's formation, which then cooled and crystallised.
- The presence of the blobs “shows just how sluggishly Mars’s interior has been churning” for the past four-and-a-half billion years, scientists say.
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